I'm considering buying a reasonably priced and low power Nvidia Physx card to go with my ATi 5970 for a new build. Obviously, it doesn't need to be strong on the graphics side of things, just solid enough for Physx. I know about the driver "issues", and the need for patches etc. so don't worry as far as that goes. I've briefly looked around here and elsewhere, but not seen anything conclusive. Any suggestions? Recommendations for a specific brand/version would be welcome.