I've got a TFT which i use for gaming, and I don't mind it at all. The good 8ms TFTs should be able to provide no ghosting or tearing whilst playing fast paced games.
However, it is very much a personal thing. I can quite happily play games on my 18ms TFT, but I do notice they look a bit better on a good CRT. Its something only noticeable when you see them together, as you just get used to it.
I wouldn't even consider a CRT nowadays if I had a choice - TFTs are getting closer in price all the time (Good 19" TFTs for around £200, and very good 17" TFTs for well under £200).
Quad wrote a good article on CRT vs LCD/TFT last year, which is in the articles section. Thats worth a read if you are trying to decide between them.