Assassin's Creed 2 now on XBL Games on Demand, Brotherhood Avatar items added

Xbox Live Marketplace has gone assassin crazy today, throwing Assassin's Creed 2 onto Games on Demand and tossing a gondola-load of Assassin's Creed: Brotherhood items onto the Avatar Marketplace. The game will run you $40, and the Avatar outfits aren't exactly cheap, weighing in at $5 each.