Hi, I have recently changed over to the Mac world and have to say i was impressed to begin with! I would love to keep this feeling, but am having trouble with Apple TV. We currently have two separate Itunes libraries, stored under the same external hard drive but how do i connect both to Apple TV? When i am in my library for instance, the apple TV device is detected, but when i switch to my husbands, his does not show up. I have tried reading forum after forum, but dont understand the difference between syncing and streaming, I sound really dumb i know but i just want it to work!! If you have any advice at all including any step by step information i would be so appreciative!!!! When his device did appear in his itunes it said it was streaming under the preference tab, but like i said earlier I dont know the difference!! is there a way we can access both of our music? I look forward to your responses, thank you again!!