Personally I'm very happy with my TFT monitor. It sits alongside my CRT as a dual scren setup. It's a Belinea 15 inch and has inputs for DVI and standard Analog VGA. I have two PC's and can switch between a Dual screen on one or TFT on the other from the On screen menu. Cost me about £400 and I actually prefer to play games on it to the CRT. I've not noticed any of the ghosting, slow refresh etc I was warned about. I also watch DVD's on it. Because it is flicker free I believe it's better for the eyes too. One benefit I haven't seen mentioned is heat. My room is like an oven a lot of the time and an extra monitor pumps out a fair bit of heat. The TFT is a lot cooler running.

I've been waiting for my CRT to go so I can get another TFT but it refuses to pop it's clogs. :/

I have been reading recently about new mnitor display technologies which are on their way and they sound pretty exciting. But if I needed another monitor now I know what I would go for.