Hi Pat,
If this helps, I own a Dell 2005FPW Ultrasharp. It's a 20.1" widescreen - bought just over a year ago. The clarity is amazing, and I paid around $425 shipped when it was 25% off regular price. Now you can buy similar ones for $200-$300.
However, mine has a lot of extras, so that's why I paid the extra $100 over similar monitors. It has an adjustable height stand, multiple connection types, and portrait/landscape mode (it swivels into a vertical position - nice for long web page reading and similar stuff).
It's not the best of the rest, but it's very crisp, and colors are excellent. My print room tech commented that he's only seen two files of the 100+ I've sent to him that the color was just a bit off, but nothing glaring. Only a serious graphics pro would want more. I've seen them sold by reputable ebay sellers for just over $200.
Assuming your video card has a DVI-D, just make sure you get one that has that spec. Normally the DVI-D LCD panels are a little more, instead of the VGA only LCD panels. I've got dual monitor capable cards, just no dual monitors...
Good luck in your search!
Cheers,
Marc