So, I'll say up front that I have read the thoughts about using older/cheap/non-server grade hardware for FreeNAS. But, what I want to build will be no less than a for fun rig and no better than a secondary back up server. With that in mind, if you were going to build a similar system but could only purchase hardware from Craigslist or eBay what parts would you look for? DDR2 or DDR3? Single or Dual Socket? Consumer or Server Boards? Dual or Triple Channel? Share your thoughts.