I've been playing Motorstorm Apocalypse, waiting for Red Faction Armageddon.
Another one I've been chipping away at is Amnesia: The Dark Descent. It's an indie horror game. The developers recommend playing at night, with the lights out, wearing headphones, and that's what I've been doing. I've never experienced anything so unnerving and tense. You're just walking around this dark castle, trying to make your way deeper to find out who you are, and why you're there.
The atmosphere is great, and nothing happens for the first 2 hours. When you finally encounter a monster, there's no way to defend yourself, so you have to get clever with blocking doors, and hiding in dark places. It's some scary shit. I feel like a little bitch when I'm playing...it's really something to be experienced if you like horror.
I know its just a game, but its like a good movie that sucks you in and fucks with your mind.
http://www.amnesiagame.com/#main