I'd like to join...
Xbox 360:
DiRT;
Saints Row.
Playstation 2:
Star Wars Battlefront 1 & 2;
Worms 3D.
PC:
Condemned: Criminal Orgins; (Looked like a Action game in the demo... turned out to be horror. I LOVED IT)
Battlefield 1942, 2, 2142.
Half-Life 2, Episode 1;
FEAR, FEAR Extraction point (Well... I'm about to play it)
And I'm going to get Crysis when it comes out. ^^