Sharp LLT2015-B. 20.1" 1600x1200 resolution. DVI I have 2 of them running on a Matrox P650. Had them since mid November. No complaints so far.
I think that most if not all Dells are using Samsung panels, so that could be what you are referring to. There are far more monitor companies than panel producers, so many monitors are based on similar or identical panels. For example, Acer and Viewsonic had recently launched a 19" widescreen monitor, and I'm now starting to see the same panel crop up in monitors from many, many other manufacturers.