I have two 19inch CRT's.
One is calibrated with a Spyder, the other just holds tool pallets, open folders etc.
If you do run dual monitors and want both to look the same then make sure you get a calibration device that is able to to calibrate both, or make sure your monitor driver can run custom profiles on both.
High end LCD's have caught up with lower spec CRT monitors, but still have some distance to go to catch up with the high end CRT's. There are LCD's that are up to the task though, the Dell Ultra Sharps and Apple Cinema screens are very, very, good. But, they are also very, very expensive compared to a CRT of the same size, and if your as fussy as I am you can see the difference, especially when viewing from a slight angle. The colours change, as do the tonal graduations in the blacks.
The problem is no one makes high end CRT's anymore, so getting them new is a challenge, and the used prices seem to be climbing, especially for the 19 and 21inch models.