Yeah I had an 8800GT in the drawer. Just plugged it in and enabled the PhysX on it.
Also unlinked the GTX260 and 8800GT in Precision, as an added measure. Gonna look at Vantage and see if 8800GT helped any
I had bought a physics card a couple of years ago when it 1st came into play and I took it home, installed it and I actually scored less and I couldn't tell any difference. It was an ASUS physics card but I'm sure it wasn't as powerful as an 8800. I took the card back the next day and got my 249.99 back, lol...
Seems to be working fine. No drop in FPS that I can see at all, and made a minor gain in Vantage. Just gonna leave the card in and put it to some use once in a while I guess. Hardly draws any power (850w seventeam anyways..), and it's better than just getting beat up inside a desk drawer.