I would personally, based on the recent experience of one of our Coords, run away screaming from anything with the name Dell on it. She had nothing but grief from them and next to zero customer support, lots of extra charges, and a generally crappy system. 
As far as monitors go the LCD screen I got with my new e machine seems more than adequate tho I only run Terragen 2  and my basic Imagine3D on this box. It's nice, sharp and bright and the colours and resolution seem very good as well.. ...CRT's are really on the way out and a lot of companies [I heard Sony for sure] are not even making them anymore so support for the CRT will wane in the near future re:repairs etc.. ...

 

Once in a while I look around,
I see a sound
and try to write it down
Sometimes they come out very soft
Tinkling light sound
The Sun comes up again