network adapters you can plug a SATA drive into directly apperintly exsist
I did know know these existed till I happened upon one on DX
Obviously these are a bit expensive and I would not pick one up for that price but I found it interesting that they exist. Perhaps if I where to look around I would find a good price but not gonna bother.
edit: after lookin through the boards and I see others have made this discovery although the only link was a wholesaler. Still more than an official adapter and a converter combined in cost though.