I have a 500Gb Time Capsule that I use with My 2009 MBP and my soon to have MBA. I would like to add an external hard drive to my network. I have the old MBP drive in an enclosure with a USB interface. What equipment would I need to add this drive to my network? I was hoping this I could just plug it into my Time Capsule, though it seams that doesn't work. Thank you in advance for your help.