LCD Monitors my friend. If monitors were made from LED's, you'd have to be forty feet back to make out a single image.
LCD monitors have improved a bunch over the past few years, and unless money is tight, they are a viable option. Also, a man teaching an art program will probably appreciate the artsy chic of a thin monitor rather than a bulky and stereotypical CRT monitor. Alas, LCD monitors can form 'dead' pixels which will either display no colours, or only one colour continuously, which can make watching a movie with a red dot square in the middle a frustrating affair.
I've provided some info, but ultimately the decision is up to you.
Toms Hardware Display Guide -> has some good info regarding LCD displays.