Xbox Live Gold Members can purchase Mass Effect’s DLC Bring Down the Sky and Pinnacle Station for only 240 MS points each.

Today at Amazon.com they are having an all Xbox360 deal event.  Every few hours a new deal will pop up on a different game until they run out.  And all day you can pick up Left 4 Dead 2 for $34.99

Here are some clues to what is coming up for the day (in order).

1. RPG set in post-apocalyptic Washington DC. (Fallout 3?)
2. Roam the lush and dangerous world of Renaissance-era Italy. (Assassins Creed 2?)
3. An epic RPG that is completely shaped and reactive to your play style. (Dragon Age: Origins?)
4. The original zombie killing hit. (RE5? Dead Rising? Left4Dead?)
5. The Last Hope is the fourth of the series.
6. Experience immersive military conflict simulation with this first person shooter.
7. Restore peace to the galaxy.
8. Next up on center court — you!