IMHO, LCD monitors are more suitable for software development (a lot of text/reading) and for general use, where as if you are into photoshopping etc, and need very high detail of color, resolution etc, you should use a top of the range CRT.
While looking for a lcd monitor, don't forget to check native refresh rate and native resolution of the monitor. Compared to CRT, LCDs have poorer refresh rates (still no disconfort to eyes though), and some LCDs are not great at resolutions other than the native resolution - for example, I have a 15" UXGA screen with a native resolution of 1400x1200 (not sure now), but its almost unsuable at say 1024x768.
I've been searching for the thread where we discussed some of this but I have been unable to find it
LCDs are supposed to be easier on the eyes and I spoke with an older gentleman with bad eyes who was selling his CRT for an LCD because they were supposed to be more gentle. I'm not sure if that was on medical advice.
CRTs cause less eye strain if you increase the refresh rate, personally I like 72Hz or more. LCDs have slower refresh rates and aren't supposed to be as good for games, particularly the action type. I can't say from experience though.