I own a Powerbook laptop, an Airport Express, and a large external firewire+USB hard drive. On the hard drive I have a large amount of music stored which I would like to have ready access to. However, it is cumbersome and annoying to have the hard drive connected to my Powerbook, as well as deal with turning it on/off and mounting/unmounting it every time I'd like to access the information on it. My question is: is there a simple way to plug my hard drive into a dedicated place on my network that I could then access easily from my laptop, ideally the Airport Express? In other words, is it possible to plug an external hard drive into the USB port on the Express and have it be a network drive that you can access? Or would this require buying a server? Would a mac-mini be an option as a server? Right now I have a wireless network set up in my apartment from the Airport Express, which has my printer hooked into the USB port so that it can be shared amongst other roomates. Could I use a USB splitter so that both the hard drive and my printer could be hooked into the Airport Express, available as a network drive? Can a hard drive be plugged into the Airport Express and left on to be accessed via the network? Is setting all of this up simple? I have little experience with it, so specific help is appreciated. Thanks!