setup through the command line is pretty easy.

you can follow this guide for ubuntu/debian: http://forums.rutorrent.org/?topic=256.0

there are also some auto setup scripts available for installing seedboxes, but i prefer to do it manually - especially if you do not know linux that well coz this will help you to learn more and you'll have a better idea what to do if something goes wrong.

if you get stuck with linux, a quick google search always has more than enough info