Ebay had 30% cashback up until last night with Live.com.... you could have bought it for $350 and in 60 days gotten back $105 making it 245. I did this 2 months ago when the promotion was on and I bought 3 of them. sold 2 and got 300 in cashback.... only ended paying I think 50 for my DX7 package
(this is not illegal, ebay specifically states that they don't care what you do with your items bought).
Cashback is now 20%
search for key term "wii"
on the top you will see "Live Search Casback...BuyWii. You may get 20% back..."
Click the link and it will take you to ebay. now you can search for anything and if you meet the criteria, you will get 20% back in 60 days from microsoft.
Criteria: Auction has to be a BUY IT NOW auction and you must pay through paypal. Like I said, I did this 2 months ago when they had 30% and already got my money back. No worries, when you click it the buy it now button, it tells you how much cash back you will get. So you know that particular auction qualifies for cashback.