There's also Uncharted 2, Ratchet and Clank (Tools of destruction, a Crack in Time, AND Quest for Boot)
Then there's Demon's Souls
Metal Gear Solid 4.
If you're a fan of fighters, Naruto Ultimate Ninja Storm. I know, it's Naruto. But darnit all if it ain't a good game!
Then there's the PSN downloadables... Ohmy. There's a number of PS3 exclusives out there. Good ones, at that.