content: For awhile I made a decent buck taking the old guts out of old off the shelf systems and installing mini-ATX motherboards, quad-core AMD APUs, & a SSD as well. I would even remove the old decals and put the new AMD & SSD logos on the front so people didn't mistake them for the similar older ones that hadn't been upgraded yet. This was a couple of years ago but everyone was always happy with the near instant boot and over all performance. Not to mention I tried keeping the cost to around $250 cash per system.