I've been eyeing building myself a NAS for a while. The big hangup for me has been energy usage. Otherwise I would have one as I've got several Core 2 Duo CPU's, Celeron (core based) and a Core 2 Quad sitting about. I was considering an Intel Atom board a while back. However it still used more energy than I would like. It also had too few SATA ports for my tastes. For the heck of it I recently looked up AMD's offerings and came across this AMD Fusion C-60 based board the ASUS C60M1-I. This board offers 6 SATA ports so there is plenty of room for expansion and the Fusion C-60 only uses 9 Watts. After considering usage with an 80+ bronze or better PSU and hard drives this would be within an acceptable watt usage for an always on appliance. It should be very close to the ARM based NAS offered by QNAP and Synology. The probelm I'm pondering is would this weak CPU be enough to handle Openfiler or FreeNAS. I've lost interest in unRAID since it appears you can only use three drives without paying. When all is said and done I want my Gigabit Ethernet to be the only bottleneck when reading or writing to the NAS. Not the CPU being overburdened. Also I don't know too much about these OSes. - Can I add drives later and expand the array like on a QNAP or Synology? - Are there additional network services available as QNAP and Synology do? Such as an FTP server, iTunes server, SMS/e-mail alerts, Web Server, and so forth. - After setup can this be administered headless? I want to tuck it away out of site. - Is there a better OS to use for the NAS? Should I look more along the lines of a full featured OS like Ubuntu?