After watching all the E3 console hype that was going on I somehow missed the introduction of the PPU=physics processing unit for pc.
don't know if this has been posted but here check it out.
http://www.ageia.com/index.html
The pics I saw of it are in pci-e format and have a 128mb of ddr3.
and work in conjunction with any GPU.
And are hitting the street this year at $199.00
just what all the pc gamers need another $200 card next to thier existing $200-$500 Video card.