Microsoft's 8 for 24 - Anybody tryin' to calculate their 2400?

In light of the news about Microsoft's Spend 2400 Get 800 Back, has anyone else gears started turning about what they'd buy if it was juusst a bit cheaper?
Anyone got their potential lists?
 
(...btw, I'm gonna refer to it as The October 2400 just to be a jackass).

Costume Quest is on my list.

The Undead stuff for Red Dead

I'm down to 640 with Costume Quest and The Sacrifice.
 
Seems October was a good month to pick for me.
Now if only I didn't buy Case Zero LAST NIGHT.

Limbo, Hydro Thunder, L4D DLC, Borderlands DLC, and so much more are on my list