19" LCD definately. CRTs may give you a higher resolution, but thats all you get. Their image quality is significantly worse, its bad for your eyes, it takes up an ungodly amount of space, and it looks bad. With LCDs, there's the usual space saving feature built-into them, then there's the awesome image quality. And if you get a decent one, ghosting/blurring isn't a problem.
Basically, no reason not to go with a LCD. 1280x1024 looks beautiful, and 19" is huge once you get to see it in person. 1600x1200 may be starting to become accepted, but its still a ridiculous resolution that you need a top-of-the-line card to play at. And judging from my old CRT, it doesn't look that much better than 1280x1024...you barely ntice it and its not worth all that you sacrifice when you get a CRT.