Zappos.com is offering the 20GB Premium 360 w/ HDMI for $299.99 which is the standard price. If you click through live.com they are offering 22.5% cashback for Zappos which gives you $67.50 back.
http://search.live.com/cashback/products/offerings/1702/9535001
http://search.live.com/cashback/products/offerings/1702/9535001