I understand that you can hook a printer to your Airport extreme base station and have a print server, but is it possible to then hook a USB hub to that port on the airport? Then could I hook an external hard drive to the hub along with my printer? Or is the idea of the external hard drive connected to the airport just not going to work? In theory I could then access the files from anywhere in my house without having to lug it around. So is this idea possible? Thank you for your time.