AlKim: Sorry for being so obvious, but Gran Turismo 4. It sold a heap, so should be easy to come by too.
voslobandre15: Should I play Gran Turismo 3 before Gran Turismo 4 or should I go directly to Gran Turismo 4 ?
Go straight to 4. No real advantage in working through 3 first.
babark: Sly Cooper 2 (Apparently 3 was just average, and 2 was better than 1)
Still well worth playing, at least to follow the story!
babark: ... you can get
SSX Tricky, or if you can't find that, one of the Tony Hawk games.
Tony Hawk 3 is golden on the PS2. The best of the whole series.