I've played New Vegas about as thoroughly as possible on the XBOX 360 and I'm just about done making a gaming PC.

I was wondering if anyone could recommend a few mods to make for a new experience. I'm looking for mods that will enhance the experience without introducing things that don't really make a lot of sense in the Fallout world, so Super Mutant Macho Man Randy Savage, while highly entertaining, is something I'm not looking for.

Thanks for any help you can offer.

So far I've heard of J Sawyer's Mod and a series of "Factions Reloaded" mods

Project Nevada is quite nice. You are able to adjust a lot of the game play options to suit your needs.

The Sawyer mod completely rebalances the game, with the intention of making it more of a survival experience. Your total health points and carry weight capacity are much lower, your maximum level is capped at 35 (you must have all the DLC, including GRA and Courier's Stash to use the mod), hardcoe mode hunger, thirst and sleep meters increase much more quickly, stimpaks are much harder to find, and much, much more. It's best to read its http://fallout.gamepedia.com/JSawyer to see all that he tweaks.

If you're looking for new quests and content that fits the existing lore of the game well, New Vegas Bounties http://www.nexusmods.com/newvegas/mods/37310/? and http://www.nexusmods.com/newvegas/mods/41184/?, as well as http://www.nexusmods.com/newvegas/mods/49012/? by the same author, are top notch.