Recently, I had my EVGA 850W Gold PSU fan give out on me, and now I have two choices:

1. Get an entirely new PSU (I want to upgrade to a 1000W Platinum Super Flower PSU at a very good price), keeping or selling the old PSU.
2. Keep the old PSU and replace the fan through a repair service, if I can find one. So far nobody has reported back to me on its replacement. I am not comfortable doing it myself.

Does anyone have any thoughts what path I should take? Any suggestion will help.