If you own a PS3, it's time to go out and pick up a PS3 esclusive "Uncharted - Drake's Fortune". This game is amazing, I just got done playing a 4 hour session of it and I'm very impressed. It has beautiful graphics and a good storyline to keep you interested. Plus a few different styles of play from riding in the back of a jeep shooting other vehicles, to driving around on a jet-ski, it's a blast.
Here's a trailer for you to check out if you have no idea what it is -
http://www.us.playstation.com/Uncharted