hi
i do not have any CTX LCD experience, only an old 15" CRT, however
i have just yesterday purchased a brand new NEC Multisync LCD 2010, 21" LCD with 20.1" viewable area at the Pomona Computer show. Put me back about $800 but man it was so well worth it. So far this is the best monitor i have ever head and i had many.
if you are on a budget and are looking for an LCD, I very highly recommend the NEC. I saw the 19" go for $600, the 17" for about 400 and the 15" were rediculously cheap already at the same place.
When I looked at all the LCDs lined up next to each other, the NEC ones really stood up when runing applications, especially games and movies. They had far better look and feel then sony, mitsubishi, samsung and a whloe slew of other. KDS next to them is right down oooogly and barely works. I think I would have to go with SOny as a 2nd choice, while unfortunately CTX, KDS and few others were very dissapointing to me.
The price difference isnt that much really between them and IMHO well worth it. I also strongly suggest shopping at places like the computer shows, just find out where and when they are near your location as they will save you a LOT of money. For example, I saw the LCD for which I paid a little over $ 800, at Frys or Best Buy (forgot which) about 2 weeks ago on sale for $1499 !!!!!! Now tahts a difference and savings aint it ? It really does pay to shop around.
O one more thing, I dont know about other monitors but the new NEC LCD displays come with direct digital conenctions, so if you buy a ATI 9700 or so, you wont need to use that little adapter that attaches to the back of teh card, just plug it directly and set monitor for digital.