That looks like an awesome deal, but I can't figure out why its so cheap. www.Xoxide.com
sells a wide range of the Ultra X-Connect Power Supplies, but they usually run $55+ by themselves. Either way, from what I have read on the Ultra power supplies, they seem to work well, they run 34Amps on the +12V Rail which is great. Plus you have the option of using as many or as little cables as you want. Which is a nice feature if you like your case to look clean. If I had money it might have been something I would have looked into. Anyways, good luck.