Good FPS games for ps3

[Kantor]

BioShock
CoD4
Modern Warfare 2
Killzone 2
Resistance: Fall of Man (NOT RESISTANCE 2)

And once you have those:

Unreal Tournament III
Battlefield: Bad Company
The Orange Box

And if you own ALL of those, and are DESPERATE for another:

Resistance 2

And if you feel like suffering for some reason:

Far Cry 2.