After owning a 30" monitor, I can certaily say that it is too large for me. It was cool at first, but then I started having to move back so damn far just to be able to play games competitively. It is just too large... Just get a smaller display and compensate by moving it a tad closer. I am currently running a 1650 X 1050 display @ 21.6" and I can't see any pixelation when I move the display to take up my entire field of view. The pixels are so small already that I cannot even see the dead pixels unless I view them direct on at about 2" away.
Nice display though, if that large size is your thing.