I just got an old AMD k-6 based machine it runs at 266mhz. I'm no fan of Gnome but i will admit that it uses less resources than KDE. Does anyone know of a distro that uses KDE but doesn't suck all of you power away?
elive looks pretty awesome and has a lot of power for its size, im going to try it out. i messed with vector before and its on my pentium2 laptop and runs pretty well, except it wont go to 1024x768 even though the screen supports it.
good kde based distro for a K-6? 
Linear Mode
