So, I have a shiny new late 2012 iMac on my desk. I also have a Dell 2713HM monitor. What is the best way to connect them up? Has anyone ACTUALLY done it? Apple have been pretty useless at telling me what cable I need. I've had everything from TB->DVI, TB+USB->DVI, HDMI. I need to know it will drive the display at native resolution, so 2560 x 1440. It will allegedly require the use of DL-DVI or DisplayPort.