I just stumbled accross this:
Its a very nice way to install F@H under Linux, BSD, OSX etc etc etc, defintely worth a look!
yep, its called Finstall, and yes, its easy, but very confusing as well, i managed to get it to work, but theres a different set-up for Ubuntu users, which i found in a thread. Oh yeah, if you search wikipedia, there is some really good information and guides about Finstall.
A Complete Guide to Using FINSTALL for NEWbies - FaHWiki
Theres the wiki to Finstall