Canceled my ElephantDrive account last week after they wanted me to switch to an account that was twice as expensive. I decided two switch to Amazon S3 and found some neat tools beyond the first few Google hits: DragonDisk and AllWay Sync. The plus for me is that they are free and support Reduced Redundancy Storage. If you’re considering doing backups on S3 I recommend them.
Handy S3 tools