If you are concerned about the accuracy of the important thing is to set it up carefully.
This can be done with a set up dvd with test patterns.
My friend lent me one last year but I cant currently find it to pass on the name - google about.
Proper TFT monitors for photoediting that claim to give spot on accurate renditions cost the earth.
Like $4000 - FX-2401 Monitor
My personal expirience of editing and monitoring on a cheap normal TFT is that they are ' ok ' but the blacks always look wrong with dark areas appearing curshed and lacking any detail.
This is partly why I still use a CRT monitor.
I am also thinking of using my unwatched 26 inch sony tv as a monitoring screen so that I can get a live TV preview. I have often found that thnigs look very different on a TV.
I think the best affordable ( maybe affordable i havent checked ) is a used CRT monitor - a proper crt video monitor.