I like the look and specs of this samsung:
Samsung SM-245B 24" Widescreen LCD Monitor - Black
If I were buying a 24" TFT, I know i'd get this one.
My current monitor is a 19" Sony X black (not very popular) with a 1000:1 contrast ratio, 12ms response time, and 450 cd/m2 brightness, and that cost me £320 three years ago!
The colours on it are absolutely fantastic, but if you look close enough you can see the ghosting with the 12ms response time. I cant really notice it while playing though.