Very useful guide to setup remote backup with rdiff-backup from Linode:
My approach is to use a Snow Leopard machine with an External USB Harddrive to backup my servers. On my MacBook Pro:
1. Install MacFUSE
2. Install MacFusion
3. Then use macports to install rdiff-backup
Then, run MacFusion to mount the remote directory and run the rdiff-backup.
However, you need to remove the sshnodelay.so file in the MacFusion ssh plugin directory in order for sshfs-static to work.