acedaddy323,
Monitor (in a very general sense) depands on the dpi, refresh rate, resolution, and the tube they are using. Get a software called the "display mate" to test and you have too see for yourself, even with the same model # monitor will produce the different result.
I personally would prefer a monitor more than 19" like 21", eventhough it may not be a Trinitron tube, I don't think you will regrate it.....make sure you got good dpi .25 and lower the lower the better.
P.S. the refresh rate should at least be 75Hz, with its highest resolution or a resolution you feel confirtable working with.