I'm making a build with two screens: a 20" and a 24", both 16:9 with resolution of 1920 x 1080. However, I need a reliable gpu that can support high-end gaming on these monitors as well as probably a future upgrade to 3x 27" monitors. Which Nvidia gpu(s) do you recommend? I'm on a budget for the first "purchase" However I can continue to update this build in the future.