So, I have a Wii which I absolutely LOVE! I decided to combine birthday money with my own money to buy a 360 and NHL 2008. I only plan on getting the cheapest Arcade version. The lack of a harddrive on this version has given me some concern. I was wondering if the 256mb of internal memory is enough to save my progress in a few games (NHL, COD4)? Also, I know that you have to pay for XBOX Live, but are roster updates for NHL 2008 free? If they are free, will they install without a harddrive? I see no reason to get the next model up, because I only plan on getting a hand-full of games. Thanks!