Just bought rainbow six vegas 2, and its pretty bad ass. I got it for the xbox 360 as it feels and plays like a platform game to me. I've never really thought of any of the Tom Clancy games as PC games, they all seem like platform games to me, so I buy them for whatever platform I have.
Other than that, I occasionally still play CSS, but only the gun game mod, regular play is boring and people are dumb online. I am waiting for starcraft 2 and Fallout 3. Not even excited about GTA 4, it just seems like yet another rehash of what I have already played a million times before.
I am definitely a casual gamer now, and would never pick up a MMO or anything that required me to put in hours/week to play it and keep up with everyone.
On the flip side, I think I may go out and buy a new shotgun here pretty soon, the Tactical 500 is way fun in RSV2, I can only imagine its 10 times more fun to shoot in real life.