Be careful when looking at response times. LCD manufacturers love to play games with the response times. It used to be the time to go from white to black and back again (time to rise/time to fall). Typically you would like 8ms one way and 12 the other for a total of 20ms, for example. Now the companies are doing things like only listing one part, like the white to black. This would give them a response time of 8ms in the above example.
Many of the monitors with faster response times cannot truly display more than a few hundred thousand colours, compared to the millions you get with a CRT. For games this isn't much of a problem as the monitors can simulate the other colours, but for graphics work it might be an issue. If you do need accurate colour reproduction, look for an 8-bit or higher LCD.
My Dell 1905FP has a 20ms response time, and I haven't noticed any ghosting in games or movies. The larger Dell monitors (the 2001FP, 2005FPW and 2405FPW) all get good reviews too.