I would get this one over the other Samsung.
http://www.newegg.com/Product/Product.aspx?Item=N82E16824001482
http://www.newegg.com/Product/Product.aspx?Item=N82E16824001482
But what is the point in spending top dollar on a high end gpu to render all those textures nicely, if you're just going to stick an average monitor on the end of it?
You'd have such a better computing experience if you ditched that second monitor and put the $500 towards a single screen.