I’ve played around with FreeNAS in the past. If you aren’t aware it underwent some major changes a while ago where the main developer (Volker) stopped developing and handed over development and maintenance to a company to handle. They basically re-wrote the (now) legacy version (0.7) focusing on business requirements first and foremost and removing many of the features that excited home users about FreeNAS. Since then Volker has been working on a NAS project written on top of Linux (Debian Squeeze) called OpenMediaVault (OMV). Every once in a while I would peek in on each and see how the development has been moving, and from what I can tell OMV has made up a lot of the ground it lost having to write everything from scratch. I’ve started playing around some with OMV in a VirtualBox install and am trying to do some more research to see if it’s “Production” ready for the home environment and would meet any requirements I might have.