Not to mention some of the guys who worked on the original Fallouts have worked on New Vegas too, so that should up the ante.
I'll second Arcanum too while I'm making pointless posts =D But if you give it a go, make sure you look up the community patch. There's a guy who has been patching the game long after the official support ran dry. Also look for the high-rez patch, as it'll allow you to run the game under modern resolutions (I'm unsure as to exactly which resolutions it supports, but it's definitely higher than the original 800x600).
I had another game to suggest... I don't remember what it was though... -trails off and wanders off mumbling to himself-
1. Devil may cry (series)
2. The last remnant
3. Silent Hill (series)
4. Rise of the agronauts
5. Fallout (series)
I loved playing these games.
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem