I'm not sure where you live, but here in Los Angeles, there are areas of the city that have Verizon FiOS with upload speeds up to 25Mbps. A few years back a friend of mine found a guy on Craigslist in who offered to pay the entire FiOS bill every month in exchange for being able to drop off a portable hard drive once a week to upload. If there is FiOS nearby, you can probably find someone willing to go for a deal like that. It would be cheaper than paying Amazon (plus shipping costs).
