Didn't see a thread yet so thought ID go ahead and post one. Guess it changes every day.
Tribes Ascend Starter Pack 4.99
From Dust 3.74 (I highly recommend this game)
Payday the Heist 4.99
Plants vs Zombies 2.49
Space Marine 7.49
Max Payne 3 29.99
Indie Bundle 2 9.99
The Binding of Isaac 1.24
Sonic Generations 10.19
Anno 2070 24.99
If you don't have From Dust it is a fun game IMO.