You can check out the full listing here. Here are some highlights:

Some games, like Left 4 Dead 2, seem more purchasable with that price point, and as such, I'd expect a nice amount of copies to move on Black Friday. What isn't exactly listed in the advertisements I have seen is if this applies to collector's editions of the title. I would imagine it does not, but if there is any justice in this world, there should still be a discount applied to those version of the games. Aggrogamer will be listing more and more of the deals as they days progress counting down to B-Day. Keep checking back and start saving if you haven't already.