I use three 17" Samsung LCD's. Once you start using multiple monitors, you'll never go back to a single.
Alot of people seem to dislike widescreen monitors, though once they get used to them they never go back to 4:3's
22" widescreen main, 19" widescreen secondary. would never go back. widescreen feels much more natural.
I found that 24 inch widescreen was just right for me. The text was not too small, and screen was not too big that I had to turn my head to view the corners. Only problem with 1920x1200 screen res was that to play games you do need a powerful graphics card for high quality modes.
Yes I use a 19" widescreen on one PC and a 16" widescreen on another PC. It would be hard to go back to 4:3 now.