Hello all, I've got my hands on a MBA and now I'm faced with a bit of a snafu. I'd still like my MBP (via USB) to do backups w/ my 1TB external but I would like my MBA to do the same only over Wi-Fi. I've done some (admittedly poor) Googling and I've yet to find a clear-cut, nothing fancy way to connect an external drive to my wireless network (hopefully without buying a new router) and being able to backup using that. Does anyone have an recommendations for any "middleman" hardware to make this possible? Or, if that isn't an option, an inexpensive router with USB ports (really just 1 is all I need) on it? Thank you.