My brother has a 21" Viewsonic CRT for his PC. I can tell you, with a DVD the picture is
stunning! I actually bought the monitor for him, and it's a refurb, but I've never seen a monitor that looks better, anywhere- new or used. I'm actually pissed that I gave it to him! I wish I'd have kept it.
I've seen some hi def content (demo stuff he downloaded online). Simply staggering.
The monitor is a bruiser, just huge and probably 90 lbs. I've always slobbered over the flat panel LCD jobbies, but honestly I'd tolerate the size and weight to have an image like that. 21" is really too small for steady viewing day in and day out (I'm used to using the 100" Da-Lite & FPTV), but for pure quality it's unreal.
And don't even get me started on gaming with it!