Getgamesgo has a deal going on: Choose 2 games for $15 (out of 4 choices: Deus Ex Augmented Edition, Red Orchestra 2: Heroes of Stalingrad GOTY, Serious Sam 3 BFE Sigital Edition, and Dungron Siege III + Treasure DLC pack). Not too shabby
Darkness II is $12.49 on steam for the weekend, but Amazon has the better deal at $9.99
And on Amazon...
All should activate on Origin, other than Pro Street, according to this
Mass Effect 3 $16
Mass Effect 3 Digital Deluxe Edition $20
Kingdom of Amalur: Reckoning $16