I agree entirely with all the RPG, Action, and Point-N-Click Games that VmprHntrD mentioned. I'd also like to add that "Guitar Hero: On Tour" is pretty fun (though it does get more difficult to five-star in the later levels than the console GH games and Rock Band.) Another Point-N-Click game that looks like it's going to be good is that "Time Hollow" Game.

Alyas
"Good... Bad... I'm the guy with the gun."