I'm running two 20 inch monitors with my 4870... I want to purchase another video card for driving another monitor--a 1080p hdtv that i'll be using as a preview monitor in FCP and after effects as well as in 3d modeling programs. i'd like to maximize my machine's potential in SL. i can wait a month or two to do this, because i'm planning to replace my RAM with three 4gb sticks to start. i'd like to get the most powerful card I can. Would getting a Blackmagic IO card contribute in any way?