I've had an 18" microtek 815C  lcd screen for over a year.  I absolutely love it.  Now it is not perfect mind you, as once in a great while if the action is super fast it might get just a slight tad blocky for an instant or two.  But, it uses  just a few inches of my desk top and uses only around 50 watts of electricity to power it.  
Personally, I'll not go back to a crt monitor, at least for what I do with it.