...it's a good way to get a Debian installation on you HDD, too. A buddy just gave me his old PC (a pentium 166) - All I did was resize the FAT partition (used fips) so that Windows was still there (I use the Windows .dlls & registry for Wine), booted Knoppix, went to the command line, and ran knx-hdinstall.
If you do that, though, you might consider waiting until [link|http://www.cebit.de|CeBIT] is over - version 3.2 of Knoppix is due out then; it's supposed to have even better HW recognition KDE3.1 (and the ability to use a persistent 'home' on the HDD if you don't want to to the hdd install).
ps - I registered IWETHEY/IWETHEY with CeBIT.