All linux software runs on all linux distributions is true, but a lot of times you'll have to compile it yourself. RPMs work for SuSe, Mandrake and Redhat/Fedora. Mandrake is my favorite btw. I've used Ubuntu, Redhat, Fedora, Gentoo, Slackware, Mandrake, SuSe at least but you pretty much have to find the right one for you.