I've just purchased a Seagate 160Gb USB external hard drive and I shall back up everything important on it this weekend. It has a one touch button to make backing up automatic.
I think that's the way to go. About £100 (it's Firewire also).
You can get a little portable Seagate 5Gb hard drive for £85

[www.the-gadgeteer.com]

Doug Weller

Director The Hall of Ma'at
Doug's Skeptical Archaeology site::
[www.ramtops.co.uk]