My first post, please forgive any mistakes! I had to put my two cents in on this one. I am running an evga 8800gts and recently had the same dilemma of having to pick out a monitor. I had been running a 19" viewsonic crt, but wanted widescreen.
I first bought a 24" gateway widescreen lcd and have to say it sucked for games, motion blur beyond belief unfortunately(although i know there are better lcd's out there i'm sure, benq 24" is rated highly for example, nec mgx2 or whatever is supposed to be awesome). Web browsing and text was great on it, however.
Then i stumbled upon this thread,
http://www.hardforum.com/showthread.php?t=952788
and after nearly reading the whole thing, was persuaded to give it a shot.
This sony fw900 widescreen monitor has been awesome so far, a little tweaking at first, but i am whole-heartedly ready to recommend it. Its a 24" widescreen crt, 22.5" viewable screen, so it is really heavy. If you have the desk space, and want a near flawless gaming/movie monitor, look no further. Blacks are black, colors are vibrant. I paid 300 bucks for mine, these things cost over 2 grand originally! Granted, they will mostly all be used (2000-2004 i believe they were made), but so far i have had no problems and have been loving mine!
Good luck on picking out a monitor, and i've also got to say how great i think my 8800gts is, and i guess they are now sub $400 so you cant go wrong there either.