This isn't even shameless anymore... I so rarely ever update this site that the advice is effectively worth what it costs (nothing)...nevertheless, here's a post on FreeNAS
http://www.archatechs.com/files/freenas.html

Ubunutu Linux has one of the most active communities out there - good place for all kinds of info.

IRC, particularly the FreeNode network has tons of "channels" (IE Chat rooms) for anything technical related (#networking , #hardware, #linuxhelp, #windows...)

And of course, you can always ask here! I'm always impressed with how knowledgeable our little FT community is.