I'm running dual 1440p again, left-monitor is my PC and the right monitor is for my Xbox 360 as of now (tho I may add other consoles once I get an HDMI-Switcher). I both immediately like the extra screen-space and realized that my triple-27" layout wouldn't be feasible at all.
I may resell all of my old monitors that I currently have, then get a single 1920x1080 240Hz+ monitor, preferably with sub-1ms response times on it. Really depends on whether I can force dual-1440p to work smoothly at 60Hz, on PC I'd like to take advantage of the extra refresh rate obviously.