Hi, I just got a 500GB drive that I want to connect to the airport extreme to use as my media hub. I have 2 macs in the house that will be using this for the iTunes library. My questions are: 1.) Can I have i iTunes Music folder on that hard drive and have both computers look to it for media independently, and if so- how? 2.) I have several compressed DVDs in avi format that I want to put in the library so I can stream them to my macbook plugged into the tv in the living room, how can I make these compatible with iTunes? Much thanks for your help!