Looking for a new PS3 game

[Icemage]

Er... Resistance is a first person shooter with quite a lot of violence.

For less violent content, go with:

Ratchet and Clank Future: Tools of Destruction
Yes, I know it has a violent name. But it's cartoony CGI violence, no worse than your average Loony Toon cartoon. This is the closest you'll ever be to being inside a Pixar film, and it's a bonus that it happens to be an extremely fun and engaging game as well.

LEGO Star Wars: The Complete Saga
Fun and harmless, with more unlockables than you can shake ten sticks at.

Also, if you've got a backward compatible non-40GB PS3 (60, 80, 20) you should definitely check out the quite large catalog of PS2 games, including the quite excellent Kingdom Hearts 1 & 2 and Shadow of the Colossus.