True Glc, but it is a nice backup utility if you have the space to keep the images. I have a backup drive of about 13 gigs, so I can usually backup straight to it with a bit of compression, and then freely tinker with anything on the primary drive without worry of screwing up the data on it

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At any given time, I use regularly about 30 to 40 third-party apps. 10 or so games, 10 or so image/audio/video utilities, and another 10-15 general purpose programs (burning software, mobo monitor, ftp and usenet clients, browsers, etc).
I don't keep the CDs and licenses for these apps organized, it'd take a day just to categorize and store it all. In the time it would take me to re-download and and/or reinstall them all from their CDs, I could take two ghost images of my drive.