I'm a new convert to consoles, and I admit I mainly bought the PS3 because of the BR movie playing capability, on top of its gaming features. I was always a PC gamer, mainly because I dig racing sims and that (ie. PC) was where the action was at.
So far I only own (4) PS3 games but I'd recommend all of them ...
1.) R&C FTOD - As many reviewers have noted, it looks like a PIXAR movie, the graphics are so good. I was never a big shooter fan on any platform, but this game cracks me up and that's part of the fun.
2.) Uncharted - I like it, but then I'm not really in to multiplayer, so that short-coming doesn't bother me. Reminds me a bit of the old Tomb Raider, albeit with awesome graphics.
3.) F1 Championship - Very good F1 racing sim. While not quite yet to the level of some of the really good F1 sims that were on PC, it's still very good, and again, graphics are impressive. May be too hardcore for the occasional racer. Only downside is that it's based on the 2006 season which means no Spa. :brokenheart:
4.) DIRT - I was a fan of the Colin McRae Rally series on PC, so this was a natural for me to buy. Reviews of DIRT on other platforms (PC, etc.) were not great, but I think this has been tweaked for its release on PS3. Another eye-popper when it comes to graphics, and seems to cover the gamut for both the casual, as well as hardcore, racer. Lots of tracks and vehicles too.