I have a 09 Mac Pro upgraded with dual 3.46 hex processors and dual graphics cards. It came with a Radeon 7950 (sapphire) so I have a boot screen and I also have a EVGA GTX 970 SC ATX 2.0 which I plan on putting in the machine as well, powered by a 5.25" PSU. So ideally I should be able to run 3 4K monitors with these cards, 2 from the 970 and one from the 7950. My question is what monitor do you guys recommend? This is a workstation, so no gaming.