So far I've cleared resident evil 5, and resistance 2 off the game shelf and I'm almost done with killzone 2. Killzone is just a fantastic shooter with lots of great weapons. The controls even after the patch are still a bit wonky but once you get used to them it's fine.
I picked up halo wars limited edition from a guy on craigslist but I'm not sure if that's trade fodder or not. All that remains is dead space after I finish killzone and then my game shelf will be clear.