Recommended Titles that are 1 year or older?

Have some trade credits to spend at goozex. Just wondering what recommendations people had one some good games.

My current games:

AC/DC Live -probably will trade it off, downloaded songs to HDD
Bourne Conspiracy -in process of trading it on goozex
Call of Duty 4
Crackdown - wanting to trade it
DDR2
Gears of War - just got on goozex
Gears of War 2
FarCry2
Forza 2
Guitar Hero 2 - wanting to trade it
Madden 09
Mass Effect
NCAA Football 08 - havent touched
RB6V
Rockband
Rockband 2
TimeShift -just got on goozex
Ultimate Marvel Alliance

Games I traded off after completing single player and most achievements:

Dead Space
Battlefield:Bad Company

I know I would like to get BioShock, but may buy this at the store looks like I can get it new for $30.00.

Any recommendation on good games that would be a good deal on goozex? Thinking about RB6v2 and Army of Two?

Thanks,

Jason

Orange box can be had for 300pts on goozex. I know deadrising is $20 at wally world. Army of 2 is 600 pts. 500pts = $25