I have heard that Tales of Symphonia is good. I think it may have some music game-esque parts to it, which might be interesting.
As far as Ratchet and Clank games, if you've never played any of them before, you need to start with "Tools of Destruction" (for PS3) at the very least. Yes, there's a sort of intro to "Crack in Time" that recaps the storyline in the previous two games ("Tools of Destruction" and "Quest for Booty"), but I really think you'll miss out if you don't play the first one. The storyline for the Ratchet and Clank games is so good that you feel like you're playing an awesome movie. You won't know the characters or get the jokes as well unless you've played the previous games. (It's would be sort of like reading a series of ten books starting at the tenth book...you'd miss a LOT!).
Really, I'd want to make you start all the way back with the first Ratchet and Clank game for PS2 and play all of the PS2 games first (with the PSP ones being optional).
As far as Ratchet and Clank games, if you've never played any of them before, you need to start with "Tools of Destruction" (for PS3) at the very least. Yes, there's a sort of intro to "Crack in Time" that recaps the storyline in the previous two games ("Tools of Destruction" and "Quest for Booty"), but I really think you'll miss out if you don't play the first one. The storyline for the Ratchet and Clank games is so good that you feel like you're playing an awesome movie. You won't know the characters or get the jokes as well unless you've played the previous games. (It's would be sort of like reading a series of ten books starting at the tenth book...you'd miss a LOT!).
Really, I'd want to make you start all the way back with the first Ratchet and Clank game for PS2 and play all of the PS2 games first (with the PSP ones being optional).