I'm thinking about buying a second 670 soon and was wondering if my PSU is capable of supplying enough power for everything.I've got a corsair AX750 750w psu and I'm gonna be getting another gigabyte gtx 670 windforce 2gb. Also sometime in the future i'd like to run a triple monitor setup and was wondering if 2 670's would provide a decent fps on high or max settings on most games.