Buy Black, it's the best FPS on Play 2,
Mercenaries is good,
GTA San andreas damn good,
Burnout 3 is decent,
Gran Turismo 4 if you're into race simulators, Resident Evil 4 is pretty cool,
Okami is definitely a great Zelda like game,
Prince of Persia games,
James Bond 007: Everything or Nothing (trust me),
Shadow of the Colossus very nice and original but short, Kingdom Hearts (I'm guessing you don't mind the gayness if you played FF X-2)
need for speed hot pursuit 2 and most wanted are ok,
Onimusha 3: Demon Siege has french badass Jean Reno,
Marvel: Ultimate Alliance was dumb fun,
well, those are the ones I have most fond memories of, any doubts feel free to ask.
Also, Syphon Filter is shit and DMC rocks.