I have to say I agree with SacKen. I simply don't have the time & money to try to keep a PC current enough for gaming. Not to mention how much more fun gaming is on a 100" screen than my Samsun 19" computer monitor!
Very arely you get some kind of glitch on an Xbox game (eg Morrowind has a few), but for the most part you just pop in the disc & play. No driver updates, no hardware issues, no crashes, etc etc. Someday maybe I'll beef up one of my PCs for gaming, but for now I prefer the 'Box. And I'm really drooling at the thought of the
next generation of Xbox & Playstation consoles.