Originally Posted by the54thvoid
I switched up from a 24" 16:10 resolution monitor to a Dell Ultrasharp U2711 and it has the 2560 x 1440 resolution. It's a nice size monitor and on the Dell the quality is superb. Not a major hit on VRAM but i did lower AA on some games (the higher pixel density makes AA requirements less as the pixels are smaller, reducing visible pixelation on diagonals).
Enjoy your new screen!!
After doing some more reading, this screen has the same panel as your Dell and the 27" Mac display. I'm quite sure the stand and build of the whole thing will be much cheaper though.