[RndTbl] Backing up over the Internet

Rsync works great to back up directories over the Internet. For security I was interested in having the backup copy encrypted and rsync does not really work in this senario. I found two candidates for this: Box Backup http://www.fluffy.co.uk/boxbackup/ duplicity http://www.nongnu.org/duplicity/ I am giving Box Backup a try. Has anyone used either of the these systems? Are there other suggestions? Thanks, Bill