Decided to start playing New Vegas again and I was wondering if you guys could shoot me some links to mods that you would recommend for someone who just wants to enhance their experience playing the game. Like gameplay enhancements, atmospheric enhancements etc. etc.

Thanks guys.

Well, time to self-promote myself again then: http://newvegas.nexusmods.com/mods/42840
My mod aims to make the Mojave less predictable by adding in new gangs with their own weapon arsenals.
It aims to make weapons that aren't used very often (or not at all, such as Plasma Caster) and make my new gangs use 'em.

So if you want the wasteland to be less predictable then try out my mod.
I'm currently on a indefinite hiatus from updating it though, so don't expect anything new for like a month or so.
But it already have close to a dozen gangs and a lot of stand-alone enemies to make your experience more... Lethal.

Look at Fallout New Vegas uncut mods..

sounds sweet!!! how lore friendly would you rate your mod?

Maybe a 7/10 in lore-friendliness.
I want most of my gangs to make sense in their area and their gear but there are going to be deviations due to what I want my mod to go for.
So for example, there are 2 locations where there are Tunnelers. It can be lore-friendly, consider it the "beginning of the end" if you will.
But it could not be lore-friendly if you think it's too early for them to be in the Mojave.
Then we have the unique Grenade Launchers from Long 15 and Dry Wells in Lonesome Road, the Nade Riders use these weapons, so they aren't unique anymore.
So there are few things that could be considered non-lore-friendly, but it's entirely up to the player whether they think it fits the lore or not.
There is no definite canon whether or not those are one of a kinds Grenade Launchers, so it's up to you whether you want to think of it as canon or not.
But apart from a few of those weapons, 2 Tunneler locations and 1 Roboscorpion location, it's fairly lore-friendly.

http://newvegas.nexusmods.com/mods/38719 is another mod that adds new dungeons full of well equipped enemies. That takes quite a lot more freedoms with lore-friendliness, but if you want to get action and the good stuff faster, it is good for that. The Dead Money plugin i don't like though, those new dungeons just don't fit into the Sierra Madre, and they are full of the spear throwing Ghost People, making them just a pain in the ass.