There is a $999 2560x1440 monitor out now, toms did a quick review on it recently.
It isn't the size, but the resolution. Generally when people refer 30" monitor, they are actually meaning to say 2560x1600, the common large resolution. Those are often 1300+.
That card could easily run 3x 1920x1200 (or 1080) monitors in eyefinity (a flagship feature for the 5xxx cards). 3 of those for a couple hundred a pop would give you the real estate to work your card, heh.