What is the difference between this X-Box 360 http://www.ebgames.com/Catalog/ProductDeta...roduct_ID=75060 Xbox 360 --- 60GB And this one http://www.ebgames.com/Catalog/ProductDeta...=67291Microsoft Xbox 360 Arcade In the Xbox 360 Arcade one it says The Xbox 360 Arcade System is everything you need to hit the ground running. Plug in the console and connect the wireless controller and you're playing. Then decide what extras you add and when—it's expandable to the full Xbox 360 experience. What does that mean? What does the first one have that the arcade one doesn't?