???

Im looking to purchase my own Xbox 360. I have always played at my friends house, but now I want my own. My question is, is it worth paying the extra money to get an Elite system? What are the differences between Elite, and Pro, besides the amount of Gigs you get? I don't download anything onto the system anyways, so I don't think I'd be using up the 60 Gigs on the Pro system. Is there a difference in performance between the 2?

Thank you very much to anybody who can help.