Some of those may extend into October, but I figure it's worth adding in.
Civilization Revolution - $12 @ Hollywood Video
Indigo Prophecy - $3.99 @ Hollywood Video
Star Wars: Force Unleashed - $19 @ Hollywood Video
The Simpsons Game - $5 @ Best Buy ($5 RZ cert)
Scene It: LCA - $15 @ Target
Fallout 3 - MSRP @ Gamestop
Viva Pinata: TIP - MSRP @ Blockbuster
Smackdown 2009 - MSRP @ Gamestop
Crackdown - $7 @ Gamestop (Cellfire)
Battlefield: BC - $12 @ Hollywood Video
Gun - Goozex
Arcade Compilation - $5 @ Gamestop
4000 Points - MSRP @ Blockbuster
:gs: $15 Petz 2 Giftcard - Io
The best part of all of that is that I spent roughly $120 out of pocket, and the only cash I spent on the above items was on Simpsons and Scene It. Everything else came from cheaply acquired store credit. Man, I love CAG.