You should try out Nehrim too, if you haven't already

But then he wouldn't really be playing Oblivion.

I've honestly got no idea what sort of stuff you're looking for, but I'll happily point to my signature for a list of things to try!

EDIT: Uploaded a render test before bed, enjoy!: http://www.youtube.com/watch?v=M4sT585tDTg

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. The three segments of All Natural will be explained below:

1. Custom Weather System

The cornerstone of All Natural is unique weather system that includes a new regional weather script to keep the weather synced on interior/exterior switching and when fast travelling and a variety of optional features to help enhance and customize the user's weather experience. All Natural also allows you to choose from only vanilla weathers or from some or all the weather types from Natural Weather, Atmospheric Weather System, and Enhanced Weather.

2. Natural Interiors

Natural Interiors was originally created by Wormheart, and its purpose was to make it so interior locations such as houses and guilds would be affected by the weather outside and time of day, and to make it so interior locations had weather sounds inside very similarly to the original ?Weather Inside? mod. To accomplish this, interior windows were made transparent and the sky outside now matched the exterior weather and time of day. The result is you can look out an interior window and see a sunset, stars, etcetera and also have the interior lighting level change based on it being sunny, cloudy, nighttime, etcetera, plus you can hear rain/storm sounds from within.

Sadly, Natural Interiors was never finished and had some issues. However, All Natural now includes an improved and expanded version that cannot be found outside of All Natural. Also, the Natural Interiors segment of All Natural cannot be separated from All Natural, so you must use All Natural in full to benefit from the Natural Interiors segment.

3. Real Lights

Real Lights was an incredibly ambitious project by Josef K. which aimed to replace all the fake lighting (invisible lights with no actual light source) with real lights with real light sources. For example, with Real Lights locations have candles or other light sources that emit light instead of generic white light coming from mid-air.

Sadly Real Lights was abandoned long ago and has some issues with save game bloating. However, the mod has now been included in All Natural and has been recently updated to fix all the problems it previously had. The All Natural version of Real Lights is the most updated and safe version of Real Lights and no one should use the older stand-alone version. The Real Lights segment of All Natural is the only segment you can actually use independently, so even if you want to use, say, Enhanced Weather, you can use the Real Lights plugin from All Natural. Instructions on how to do this are included in the installation section of this guide.

We've all experienced it, ever since DarNifiedUI had ingame settings people have asked if they could be made permanent. Although this was not possible through conventional means, nowadays it can be done. So I present you just that: a mod that makes any ingame settings for DarNifiedUI stick. No more writing down the values, making a screenshot and searching for the config files.

Also works with DarkUI'd DarN!

Tired of having to open up the local map each time you want to know where you are in a cave? Well, not any more for this mod gives you a MiniMap, like in Morrowind. The layout is fully configurable to suite your taste. Do you want it in the upper right corner? No problem. Do you want it to be as big as half the screen? Once again, no problem. See the MiniMap.ini for more details and settings on the layout of the MiniMap.

1) Adds weather SOUND when you're in interiors, you'll hear rain, wind but the thing I added compared to Weather Inside is the fact that you hear PsychEroc's STORM and THUNDER sounds from interiors too! This adds quite a lot to immersion in my opinion.

2) Adds THUNDER and LIGHTNING. When it starts raining there's a 50% chance that thunder and lightning will kick in. So there won't be lightning only during thunderstorms as in previous mods of this type, I think that's better for variety.

3) Uses IMPROVED SCRIPTS with no placeatme calls: this means smaller save games and no activators clogging up the game world.

4) Introduces delayed thunder when lightning is distant

5) Has a CONFIGURATION MENU (see below): you can tweak parameters to your liking, make lightning hit farther or nearer depending on your taste, change the frequency of lightning and more.

6) Changes LIGHTNING COLOR and effect, SHOCK SPELLS look BETTER now in my opinion than in previous versions.

Well, it's all in the title this time. The mod simply adds working rainbows to the world of Tamriel.
It's not easy as it sounds, and it was most certainly the most difficult scripting challenge I have undertaken. Learning about animations wasn't a walk in the park, either.
Anyway I think it came out pretty well.

THE MOD IS COMPATIBLE WITH VANILLA WEATHER AND ANY WEATHER MOD.

Let's face it, we all like Oblivion to be immersive. Some of us just like a bit more realism, others like to add tons of mods which change how the game works in order to make it as immersive as possible. One thing that's a real let down in vanilla Oblivion are interiors. They look great, but day or night, rain or shine, they always have the same level of light inside them. This, to me, was extremely un-immersive.

All Naturals spectacular Natural Interiors came along, which allowed you to see through the windows of interiors, and the light levels and weather depended on the weather and time of day outside. This added a lot of realism. But you still had a simple problem. Every time you looked out of the window, you saw a void. Nothing. This mod looks to change that.

Immersive Interiors aims to bring huge amounts of immersion into the game. By using All Natural's superb interior weather system, this mod adds new found realism to the game, allowing you to see out of the interiors windows. This means you can be in the local pub, staring out of the window at the town around you, or watch the sun set behind the city walls out of your home's bedroom window.

Thanks for all the suggestions everyone, I'm currently looking through them. (Sorry for the delay, my little girl had an allergic reaction, so we were dealing with that)

This is your last chance to suggest mods! I will be starting in about a day or so!

EDIT: Also, does anyone have any texture replacer suggestions? Thanks!