Before I get the plethora of "I'll take it" comments... I have a 3 year old Macbook Pro, and was recently given a 2 year old Macbook Air. My wife already had a Macbook Air, so now we have an extra. We do have an Apple TV - and I was wondering if I could use one of the MacBooks as a media center? If you had an extra, what would you do with it?