This week alone I've purchased & installed 15 Samsung flatscreens (22" & 24") for collegues at work. Ironically I'm "only" using a 20" version myself but I can definitely recommend Samsung. My 20" inch model is the 203B.
After all Samsung is the inventor of LCD technology. All other brands are derivatives of Samsung. I have good experience with NEC & HP too, though with HP I've noticed some minor contrast issues (especially video playback).
I think Dell is a safe bet too, although I have no particular experience with that brand.
I'd give Samsung 10/10, NEC 9/10 & HP 8/10.
Pick one that is adjustable in height, and without a glossy frame. I'd definitely NOT recommend glossy screens. I've read a technical overview on glossy screens of about 10 pages and they have no benefit whatsoever. It's an enigma to me why every brand has glossy screens in their range, especially notebooks. I think it's for commercial reasons. All that glitters is gold. I actually find the mirror effect of glossy screens very annoying. Especially early in the morning
