I have a GTX460 1GB card ordered. I was thinking of possibly using my current 8800GTS as a dedicated PhysX card. Is it possible with a 320MB version? Also with the amount of power connectors the GTX460 will be using I wont have any spare. Ordinarily the 8800GTS needs 1xPCI-E power connector. Is that still neccessary if it is only being used for PhysX or will the power from the PCI-E port be enough?