ok so within the next week im getting a copy of Oblivion GoTy for the PC after many months on F3. *Im moving back a bit) and unlike with F3, i want to get an early start on the mods, so just name me a few of your favorites, neccesary mods, epic mods, anything worth a download. TY in advance.

A few of my favorites:

http://planetelderscrolls.gamespy.com/View.php?view=OblivionMods.Detail&id=3953 by Oscuro, dev_akm, MadCat221. Not just a 'creature-adding' mod, not just a 'difficulty' mod, not just a 'gameplay-tweaking' mod, Oscuro's Oblivion Overhaul is actually one of the finest finest roleplaying mods around. http://planetelderscrolls.gamespy.com/View.php?view=OblivionMods.Detail&id=1757 by Martigen, Corepc Dev_Akm Shadowborn is the perfect complement to Oscuro, adding much-needed spontaneity to Oscuro's static world. Crank Martigen's mod all the way up and Oblivion will feel as wonderfully unpredictable as an MMO. These mods are so inseparable to me I count them as one.

http://planetelderscrolls.gamespy.com/View.php?view=OblivionMods.Detail&id=2764 by, of course, DarN.
This essential mod goes a long way toward making Oblivion's consolized interface useable. Configurable from within the game via a menu.

http://www.tesnexus.com/downloads/file.php?id=14065 by tej?n, or http://www.tesnexus.com/downloads/file.php?id=13879 bu ABO.
Two excellent character-levelling mods that do away with stat management, excel spreadsheets, visits to Wiki pages, etc, to research "builds". With these mods a player can just play and let a mod handle leveling seamlessly and invisibly in the background. I tend to prefer RL but I am using nGCD in my current game and am very impressed.

http://www.tesnexus.com/downloads/file.php?id=14304 by tej?n.
This mod allows the player to control the speed of advancement of each skill. Easily configurable via an .ini.

http://www.tesnexus.com/downloads/file.php?id=11237 by tej?n. (My games would be unplayable without tej?n.)
Willpower again has an affect on the player's vulnerability to magic, as in previous ES games.

http://www.tesnexus.com/downloads/file.php?id=7484 by Deathless Aphrodite.
Makes the player lose fatigue when running. When the player's fatigue hits 0 he starts to walk. Also allows the player to sprint for a brief time.

http://www.tesnexus.com/downloads/file.php?id=25078 by TheNiceOne.
Using this mod merchants' gold goes up and down with each trade. Also does away with the haggle slider (what a relief!) Allows the player to specify how much gold they recive from looting containers, enemies, as quest rewards, etc. All configurable via .ini.

http://www.tesnexus.com/downloads/file.php?id=4387 by CorePC. Adds much-needed life to Cyrodiil's roads. The merchants are great if you like to spend extended time away from cities as I do.

http://www.tesnexus.com/downloads/file.php?id=16513 by Bananasplit, Wolfslady, Reckless, SilentResident, Nernie, Vorians and last but not least, Ismelda.
The way the cities of Tamriel should have looked. Spend hours wandering around like a tourist, awestruck at how different (and gorgeous) everything looks. Comes in modular form - you can choose to redo all of Cyrodiil's cities or just one. It's your choice. When I'm not using Better Cities I'm using Arthmoor's http://www.gamesas.com/bgsforums/index.php?showtopic=1019807, which tranfers the vanilla cities into the Cyrodiil worldspace. Wonderful for those of us who love to ride horses through town.

http://www.gamesas.com/bgsforums/index.php?showtopic=942911, also by Arthmoor, adds Morrwind-style transport to the game. A nicely immersive touch.

http://www.gamesas.com/bgsforums/index.php?showtopic=984109 by XMarksTheSpot, Brumbek & Ismelda is another mod I can't play without anymore. It adds windows that turn off and on in synch with day/night cycles and also, optionally, smoke from chimneys. Comes with a nice variety of window color tints too.

Emma has recently released one of her wonderful companion mods for Oblivion, http://www.tesnexus.com/downloads/file.php?id=28977, an Alchemist-oriented companion with a mind of her own (and, as a bonus, dialog voiced by Emma herself).

My favorite armor mod is Brash's http://oblivion.brashendeavors.net/bows/. A great mod for anyone who loves light, ranger-ish amror and slightly more natural, non-fantasy-type bows. I also love the ranger camp just outside Weye.

http://www.gamesas.com/bgsforums/index.php?showtopic=1073491 by onra. If you like to explore, this is the mod series for you. Replaces the 'placeholder' landscape of Valenwood and Elseweyre (and, soon, Summerset Isles) with fully-realized land, ready to be modded. Which goes perfectly with:

http://www.gamesas.com/bgsforums/index.php?showtopic=1072969 by Side777, which adds seven ships of varying sizes you can pilot around all this new coastline.

http://www.tesnexus.com/downloads/file.php?id=25023 by Iliana.
An ambitious project whose aim is to recreate the province of Elseweyr, home to Khajiits and, of course, Moon Sugar. Compatible with Tamriel Heightmaps.

Heres some more...

http://tesnexus.com/downloads/file.php?id=22819 -Makes all dungeons in the game darker by removing the universal ambient lighting and fog. You will need torch/light spell/night-eye to see well in dungeons.

http://tesnexus.com/downloads/file.php?id=24483 -This mod add a new Travelers NPC to the game.
go to any inn in the game and you will find them talking or eating or etc!(Making inns better then ever!)

http://tesnexus.com/downloads/file.php?id=4805 -This adds random travellers to all the main roads in Cyrodiil.

http://tesnexus.com/downloads/file.php?id=29126 -The end to a magical curse has left a fully functional and unique farm in need of a new owner. There is something to do around every corner at Millstone Farm. Crafting, cooking, and even a peaceful picnic under the apple trees await you!

http://tesnexus.com/downloads/file.php?id=18305 -All Natural combines a robust custom weather system that allows the use of weather types from all existing weather mods with custom versions of Natural Interiors and Real Lights in order to provide the greatest weather/environment experience possible

http://tesnexus.com/downloads/file.php?id=19370 -Includes a dynamic installation process that lets you choose which individual Unique Landscapes to enable.
Arrius Creek and LandscapeLOD compatibility is dynamically handled for you.
You're given the option to install Rolling Hills with or without wheat. No wheat boosts performance in that area.
You're also given the option to install lowpoly grass for the Dark Forest. This also boosts performance in that area.
You may now also choose not to install DistantLOD files.Includes all ULs.

http://tesnexus.com/downloads/file.php?id=10223 -Let the People Drink" breathes life into the very dry Imperial City, it adds multitude of fountains as well as a Great Aqueduct running from Charcoal Cave to the city. This Aqueduct was built by none other than Tiber Septim himself. Discover what Bethesda's Imperial City should have been like; take a drink from the fountains and enjoy the view from the aqueducts, this mod is for you!

http://tesnexus.com/downloads/file.php?id=25309 -This mod adds the building of "The Collectors Society" Guild to the game. Eight NPCs are there with plenty of new stuff for sale. Overall number of new usable items in this mod is around 550.

http://tesnexus.com/downloads/file.php?id=21104 -Common Oblivion (Cobl) is: 1) a world enrichment mod that adds lots of little things that enriches your gameplay experience; 2) a shared library that acts as a resource for other mods; and 3) an integration tool that allows different mods to "talk" to each other.

http://tesnexus.com/downloads/file.php?id=18417 -This mod combines four parts of Armamentarium Series - Armamentarium, Armamentarium - Katanas, Armamentarium - Armor and Weapons, Armamentarium - Staffs, and tools from Farmers Strike Back mod as well. It distributes over 1000 of new items between NPCs through the leveled lists.

http://tesnexus.com/downloads/file.php?id=3409 -The keychain will be added to your inventory when you start the game and will hide your keys when you enter your Inventory or a Container menu.

http://tesnexus.com/downloads/file.php?id=22846 -The Abandoned Mountain Shack is an exterior home you can fix up yourself.

http://www.gamesas.com/?showtopic=1010109
http://www.gamesas.com/index.php?showtopic=1072579
http://www.gamesas.com/index.php?/topic/1072579-the-any-mods-list-of-topics/page__view__findpost__p__15598738

Once you get the game, do come back and give some specifics about what you want... unless you already know?

ive already got a few down heere that im going to download, I just wanted to see peoples faorites to see if theres anything else I should download. So far im going to DL-

A mod manager (Of course)
Menu video replacement
colored map
Enhanced water + natural enviornments
MMM
one of the 2 above mentoned city mods (Maybe)
Pegasus mount
Illumination within
Sides sailing ships
the theme park mod
impeREAL city (Maybe)
Quarls texture pack (Hearing alot of good things about it)
the races mod (forgot name adds mystic elves, skyrim khajiit etc.)

EDIT: shoulda stated this before, but basically im looking for good immersion mods/gameplay extending mods

Use Animated Window Lighting System instead of Illumination within. Reason:Illumination within is a resource hog and youll get more with Animated Window Lighting System.
Use Better cities instead. Reason: Better cities has more customizable features and includes impeREAL city.

Edit : immersion mods list-http://www.gamesas.com/?showtopic=1053088&hl=
And check this forum -http://www.gamesas.com/index.php?/topic/1087896-need-mod/