Don't buy from Dell - go through Newegg, it's usually cheapest and their service is very good. I highly recommend a 6600GT or 6600 regular for two DVI monitors. Get the 6600GT if you're going to play FPSes and other graphics-intensive games, otherwise the 6600 will be just fine (which is what I have, and even I play Battlefield 2 and Warcraft III).