+1 at Bashir26's question. I'm really interested in that. It would be really helpful, especially for netbooks that lacks optical drives. Also the fact that a cheap carry disk can speed up to 150~180 Mbits (~20 MBytes.) per second as minimun.
Hmmmm... I think I'll experiment with the external HDD that I use at work. If I get some good results, I'll share them with you all.