Wirelessly posted (Mozilla/5.0 (iPhone; CPU iPhone OS 5_1 like Mac OS X) AppleWebKit/534.46 (KHTML, like Gecko) Version/5.1 Mobile/9B176 Safari/7534.48.3) I purchase all my tv and movie content through iTunes, and keep it all stored on a 2TB seagate external drive. Most of the time I just stream the content from my Apple TV, only watching it from my computer when the apple tv / iTunes store has a fit (which isn't too often). Anyways my library grows GB's a week, and the initial plan was to end up getting a thunderbolt base for my hard drive and then a 2nd thunderbolt to daisy chain to it for expansion. It's all so expensive though! I'm not a professional video editor, I'm only using the extenal drive for HD playback. Can this be done without issues on a USB 2.0 drive?