Comments are correct, I hadn't read the SUSE release carefully, SUSE 9.3 is not officially released yet. 9.2 and 9.1 are available through ftp install, for free, but it's not a very user friendly experience, but it does work. I've found SUSE with KDE to be much slower than any debian based distro I've used so far.
The last stable Yoper I tried was not nearly as fast as Mepis, which is the fastest debian based distro I've tried so far, but again, it's a customized kernel so upgrading the system can be a problem in the future. Yoper definitely had stability issues, I only got one box running with it stably, the other ones would completely hang, force reboot, hard reboot too, unplug box, not much point in that. New version, 2.2, will probably be a lot better, we'll see, but still the package problem where you have to count on the yoper team to generate all your apt stuff for you.
The newer ATI radeon's have support, sometimes natively through included drivers, but the older ones don't, I have an ATI Radeon 7000 that won't work, or barely works, with kanotix or mepis. Situation is improving as posters noted.
To me Kanotix is pretty much just a user friendly debian install, I tried a debian install and never got it working. Just did an upgrade on Kanotix, 600 mB, and it all worked when I rebooted except for one little error, my fault, it's looking for ypbind nis server when I don't have it, makes boot hang for a while, fixable though.
Debian is great, I really like it, I like the Kanotix version just because it's easier to get going, but it's just debian unstable.