okay guys got a few spare parts i've had for a while now and i've decided to put them into my old case and create a folding rig this machine will be on 24/7 dedicated to folding, but because of the cpu (phenom 9650) i dont wanna spend the earth on a graphics card that'll be far too powerful for it. i was looking at either gts250 or the radeon 5600 series of cards. any advice which card would be best suited to folding (nvidia i heard has a better ppd???)