I am trying to figure out the best way to set up my Apple TV. The problem I am running into is switching ITunes libraries. I have a 1tb external HD plugged into the macbook and am running an ITunes library off that with all my ripped movies etc. The problem is I have to re-enter the code to pair the ATV with Itunes everytime I switch libraries or unplug the external HD. So my question is will this work and/or cause me problems down the road?? Can I use the external HD to store all media files that I want to use with the ATV and just reference them in a library stored on the Macbooks HD (essentially dragging the files into ITunes while holding down option so they show up but are not stored on the Macbook). Will this work? Cause slowdown in streaming (works fine off the external right now)? Break Apple TV if the HD is not plugged in and some files dont show up? Also can I use a USB hub and plug in more external HDs and have files in ITunes from different drives? I know this was long but thanks for any help or insights you can provide.