More monitor

[usi34]

Okay, I've been reading all the posts about monitors and I'm still wondering which one to buy. Right now I have a 19" LCD that came with my Dell Computer and I'm sick of the overlap when 4-tabling. Here's a few questions I have.

What is the preferred monitor for multi-tabling?
Does it make a big difference whether it is LCD or CRT?
From reading posts I've narrowed it town to 3 monitors.
The Cotsco Sceptre, the 2001 fp, or a 21 inch Dell CRT. I would obviously like to spend the least possible on a good monitor that I can easily 4-table with. Any suggestions?
Thanks