Do you play on the PC?
My son Dan got Bioshock and it would barely run on our video card. So, new video card time. Now it runs great, but we had to reformat the PC and I don't think he's loaded Bioshock back in there which is too bad because the game is a visual treat.
Have you see Portal? I'm no gamer but Dan has shown me this game that has a really cool concept - You have some kind of Portal-blasting gun. You shoot one portal, let's say on the wall opposite you. You then shoot a second portal, say on the wall to your left. Walk through the portal in the left and you pop out of the first one you made opposite you. So you can imagine the neat problem-solving things you can do. "Hmmm, how do I get this gun to shoot this thingy - Ahhh let me make portals so that ...."
It really warps your views of space to be able to create these portals and zip around between them.
Anyway, if you ever do any online PC gaming, lemme know. Dan is itching to blow some of your guy's heads off.