I've done some search and can't find the solution im looking for, forgive me if this has been discussed. I have a 2TB external hard drive attached to my Airport Extreme Base Station that houses all my media. I also have a MBP and iMac. I want the external hard drive to host the media for the iTunes on both Macs. Is this possible? If I add music from the MBP will it show up on my iMac? Thanks in advance!