Dude, as has already been mentioned. Get a hold of uncharted. Why ? Because it's easily one of the best games ever made. It stuns you visually and engages you storywise. The whole thing is like a 15 hour long interactive movie with a ton of unlockables. It's easily one of the best games i have ever played.
Also, pixeljunk monsters and superstardust hd.
Would also recommend heavenly sword. Best motioncaptured game evur. :P
Grats with your purchase