I am interested in purchasing Apple TV for my wife's birthday. She loves her iPod. She just got an iPhone last month and couldn't be happier. I want to get her Apple TV but I am hestitant. Please answer these questions so I can make my decision. 1) About how many movies can we purchase or download for the Apple TV? 2) How much does the average movie cost? 3) Can I rent movies for the apple TV online? 4) If so, how much does the average rental cost? 5) Does it support surround sound (5.1 or 7.1)? 6) Does it support 2.1 (poor man's surrond sound)? I need to make the purchase by Nov, so any help would be appreciated.