I went ahead and bought the Viewsonic VG181. To put it simply, it is a sweet monitor!
The pictures I've seen of it (had to buy it over the web without seeing it first) do not do it justice. It is thinner than I expected, and the back looks very, very nice. (not that this matters, but I like it a lot more than I expected.)
I just bought a 3D Labs Oxygen VX1 before going for the flat screen, so for now I'm driving the VG181 in analog mode, and still the picture is rock solid and the colors are excellent (though yellow looks a little more orange than on my CRT). Banding is not a problem at all, which I feared, and there are no "waves" at all. Everything is very sharp, and I don't think I'll be able to go back to a CRT again.
The only drawbacks are:
1.) Front of screen is very fragile. Not sure how I'm going to clean it if it gets dirty without worrying about damaging it.
2.) Dragging things quickly causes them to blur seriously, but I have already gotten used to this.
3.) There is one bad pixel in the center of the screen - when you look at black or dark blue, you see one bright green dot. It's a little annoying, and I'm not sure yet if I'll send it back and try for a perfect one.
All in all though, the VG181 is a very nice flat panel monitor.