I agree with dev_devil Mandrake is awesome
I'm sure I've posted this somewhere B4 but if I may I'd like to post it again because it is sticked. + I've added A few and updated a few links
Kubuntu
http://www.kubuntu.org/
I wouldn't use the offical Mandiva site, instead I would use this
http://www.linuxiso.org/distro.php?distro=29
or
www.planetmirror.com.au
Knoppix
http://iso.linuxquestions.org/distro.php?distro=5
PCLinuxOS
http://www.pclinuxonline.com/pclos/html/download.html
BeatrIX
http://www.watsky.net/download.html
Jake