Totally agree with the "wait til you need it" philosophy, otherwise you waste time configuring and updating software you never use. That said, http://opensource

Totally agree with the "wait til you need it" philosophy, otherwise you waste time configuring and updating software you never use. That said, http://opensourcemac.org/ http://opensourcemac.org/ is a nice resource. And http://opensourcewindows.org/ http://opensourcewindows.org/ for that matter.