Originally Posted by Rollo
Just trying to help with the writing chief.
Here you go:
Your best option would probably be to sell the 450s, buy another 560Ti.
With the cards you have, I'd run the 560Ti primary and one 450 as PhysX.
I agree with Rollo, just stick the 560Ti as your main GPU and your 450 for PhysX until you get your second 560Ti to sli.