On my home systems I have been using ElephantDrive to provide automated off-site backups of my computers.  When my Windows XP system failed and would not boot, I had to restore the entire OS from system files.  Because I was using ElephantDrive, I was able to restore all of the important data that I had on the system.  For all of you out there who don't have a reliable, off-site backup strategy in place, I would highly recommend ElephantDrive.  One less thing to worry about in 2008.