I've got 6 191Ts (LCDs) and a 21" CRT, but I don't trade stocks. My LCDs update my T&S windows fine for ES, ER2, NQ and YM. My LCDs are easier on my eyes.
When LCDs started getting popular, FPS (First Person Shooters) gamers would say that they were slow. I never noticed that on mine tho...