When you're buying or selling in the used equipment market, be flexible and prepare for anything. The delivered unit wasn't exactly the one that I was expecting to get, but I was still able to make a go of it. Delivery time from Calif. was OK. I had to find and install another PS unit because the stock PS wasn't big enough to support the high speed graphics card I wanted to use, but I did locate another and got the system working. Once in operation, the computer itself actually works better than I thought. It connected immediately to my LAN and the Web and the Hi-Res graphics card from my old machine now allows me to watch HD YT videos smoothly. For an 'economical solution' (I didn't feel like splurging $850 on a new machine) it was still fairly easy to get going. Pleasant surprise: The unit came with a 1 TB WD disk drive, I prefer them over any other brand. Windows-7 Pro was also installed on it. There are some bargains in used electronics to be had and if you know what you're looking for, you may be able to find some good buys.