http://www.greenmangaming.com/hot-deals/

Save an additional 20% on select game packs with Coupon Code: "GMG20-8MUTY-M21VN" (Exp Soon).
Some best bets:

LEGO Complete Pack
(LEGO Batman, LEGO Batman 2, LEGO Harry Potter 1-4, LEGO Harry Potter 5-7, LEGO Lord of the Rings) $23 w/ Code
Civilization Pack $22
Total War: Rome II $44.99
Deus Ex Pack $11.23
Legacy of Kain Pack $5.24
Operation Flashpoint Pack $6.00 w/ Code
Hitman Pack $9.59 w/ Code
Best of Square: Tombraider, Hitman, Deus Ex $23.74
Tomb Raider Pack $29.47