Amazon has the downloadable version of Assassin's Creed Revelations (PC) at $35.00 for preorder
http://www.amazon.com/dp/B005Q23SB0
Next lowest is $48.48
Marked down to $149.00 until Saturday!!
http://www.target.com/Rock-Band-Special-Bundle-Xbox/dp/B000TT4GBG/sr=1-1/qid=1203260004/ref=sr_1_1/601-9097024-8357745?ie=UTF8&index=target&rh=k%3Arock%20band&page=1