Im thinking of buying an iMac 24 off eBay. And my question is my iPad 2 and iPhone 4 is synced to my netbook. Is there a way to sync them to the iMac without loosing all my songs, pictures, and movies not bought from iTunes? And cam they be synced to two computers okr only one? I called my local apple store and they wasn't much help, just kept saying only stuff purchased from iTunes.