I've been busy with Black Hawk Down for months and still can't get bored of it. The graphics (on PC) are realistic enough and online games are a hoot. Don't think it's out there on X-Box though.
Rainbow Six is brilliant, but also look at Counterstrike as well. I have just seen the Limited Edition Halo 2 box and you get a bonus dvd about the making of it. Looks brill!
next month 'Goldeneye: Rogue Agent' is released. It looks good fun, you play the part of a Bond bad-guy trying to rule the criminal world. Definately on my must have list
Well if it is anything as near as good as the original Goldeneye on the N64 then i would expect that game to be pretty amazing. Interesting character play point though, sounds good none the less!