I would recommend to everybody, buy a Promise FastTrak 100 PCI TX2 card if you are using IDE disks. With this RAID controller you can make a mirror as backup (there are other features as well). From all my disks I have 3 versions. One which I'm working on, another which get mirrored in real time. And a third disk which I bring to my parents each week. So if it might happen that my house burns down (of course I hope this will never happen!) then I always have backup disk of all my computers. Think about it. You can risk to lose your job or invest a couple of thousand dollars (with 1 disk it's much less) and feel save.
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