you guys are forgetting F.E.A.R
very unique and scary first person shooter to try out. I mean it's been out for over a year but I still consider it a top of the line fps.

Other famous fps not particular my favs:
ghost recon advanced warfighter
Rainbow Six Las Vegas
BTF 2142
Farcry

What I'm really looking forward to is that new unreal tournament game. Been waiting for that game for like 3 years and I don't even play video games anymore.