Comment EC2 + S3 (Score 1) 137
You can just use Amazon S3 Storage.
If you use EC2 for a simple virtual server you can mount the S3 volume onto your virtual server.
If you are like me and prefer rackspace virtual servers, then you can still mount the S3 volume with something like jungle disk.
You can then use something like Jungledisk to mount it as a volume on both machines, server and source machine.
Rackspace has basic virtual servers for like $10 a month.
So $10 for basic virtual server. $50 for 50 GB of disk storage on S3, plus $5 a month for jungle disk.
$65. Is that within your budget for a short term project?
Jungle disk is not required to make it work, but its only $5, and can make it simpler to mount the volume. If you use a virtual server on amazon EC2 you can actually just mount the 500GB volume.