There are a bunch of games that you can get a $10 Amazon Gift Card if you pre-order. Too many to mention, but LBP, CoD:WaW, Fable 2, Resistance, Animal Crossing are among them.
There is also a $20 gift card if you buy Wii Music.
Make sure to order through the VGChartz store.
http://vgchartz.com/astore.php