Bonus games are Viva Pinata and Banjo Kazooie: Nuts and Bolts. Not sure on how much shipping.
The real deal, however is going in-store to Walmart. You can get a Xbox 360 Arcade for 149.00 and a $50.00 gift card. I was in the store and saw this and came home to see if the same deal was online. Unfortunately, there is no rain checks at Walmart, so I would go pick one up in-store.