This may be more information that you were looking for. I haven't tried JungleDisk but I heard a interview with the owner of JungleDisk that made it sound like a very promising backup solution. The podcast is here: Security Now. I have been using Mozy for my online backups and it works very well with no hassles.

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Steve Kellam
Ruling Elder
Redeemer ARP Church (Blacksburg, VA)
Husband to Holly and father to Bethany, Susannah, and Charlotte (and one on the way!)
“Prayer is as natural an expression of faith as breathing is of life” -- Jonathan Edwards