I was absolutely convinced the pre-order item for Shadows of the Damned would be as out-there as the subject material -- something along the lines of a creepy baby doll -- but Grasshopper is going with a more traditional item.
Pre-ordering at Amazon, GameStop, or the EA Store will grant you access (via download) to twelve songs from the game's soundtrack. I probably don't have to remind you that Akira Yamaoka of Silent Hill fame put this OST together, so this is a rather nice incentive.
1. Theme of Shadows of the Damned (featuring the English gothic punk band, The Damned)