One Cool Cow said:
I dont want to mess around with selling it for now, and i am sure that my PSU can handle them both. thanks for your help
Oh you don't have the 660 yet, you can run 2 monitors off a single gtx 560 ti. No reason to buy the 660 unless you need the upgrade in power, the 560 supports up to 2 monitors while the 660 can support 4.