i built a computer for video editing thinking i was going to run linux and bought an ati5850. what ended up happening is win7 (64bit) with adobe premiere pro cs5. Id like to use the mercury engine with the gtx470. i was wondering if i could use the two together. Specifically, the ATI to run three monitors with the NV supporting mercury playback. the only other solution i see for tri-display and mercury engine playback is 2 gtx470 cards. i would get the quadros, but those are too expensive. thanks!