You can buy either SamSung or ViewSonic LCD monitor. SamSung's SyncMaster 770P is the best one.
When you are buying a LCD monitor look for these things:
* response time should be 6 ms ( not higher than that)
* Viewing angle. Unlike the CRT , the LCD monitors can't be viewed in every angle!!
When viewed beyond a certain angle, the Image appears dull, distorted!!
So look for greater viewing angle
* Also check for dead-pixels , stuck pixel.
stuck pixel - a dot whose color won't change
dead pixel - a pixel always appear black