Re: a little warning about gtx 480 and dedicated physx cards
I tried the 9800GT I was using with my GTX 295 in my upgraded system and saw no increase in performance when testing out Metro 2033. My Vantage score and performance in the games I tested even dropped slightly. The drop in my performance may have been due to the fact that my second 480 card was running at 8X PCIe speed as opposed to the full 16x like my first card. The physx card also made the temps go up some on my 480 cards.
I think, unless future drivers change this, that using a dedicated physx card in a GTX 470/480 SLI setup is a waste of time.