Hi Jeff,
I have no direct experience with that monitor, but from what I hear, they are fine monitors. I have a couple of questions that may help you decide, though:
Is that model a widescreen (~16:10) aspect ratio, or 5:4, or 4:3 (which is the aspect of most CRT's), and what is the native resolution?
Does it have a DVI input, as well as an RGB (analog) input?
If your current video card has a DVI output, and/or if it supports the native resolution, then you are all set. If it doesn't have a DVI output, or if it won't support the native resolution, then I highly recommend that you also upgrade the video card to something that does.
Because, an LCD monitor should really
always be used at its native resolution -- and if things are too small, then use the Display Properties/Appearance/Advanced large/extra large schemes to correct this. Down-sizing the resolution will almost certainly result in a fuzzier image than the native one does. And using DVI is the way to get the absolute best image quality w/o having to futz...
Yeah, it sounds like your 12 year old CRT is about to go into forced retirement...
[Edit: The maximum resolution of an LCD monitor is, by definition, the native resolution. ]
Edit 2: if the cost of two 19" and a dual DVI-D video card is in your budget, then I would definitely recommend getting that set up instead of a single 20", with a new DVI-D video card.