Hi, I am considering getting an Apple TV and repurpose a 500 gig SATA drive into an external enclosure, enabling the USB port. The only concern with using an external drive on the ATV, is how does this affect the user experience and syching? For example, does the ATV just use the extra space and thus when navigating in the interface, ALL media shows up in various correct places automatically such as movies, tv shows, audio, slides? What I dont want, is to have to navigate to a directory structure onto the external drive to find the files and launch them, since it defeats the whole purpose of having the Apple TV interface. Can anyone confirm to me either way what the UI experience is for this solution, AND does the ATV synch properly to the external hard drive automatically, if I chose to turn on this feature? Thanks for your help!