I use mac monitors. They are very good, but very pricey. Professional calibration can also be difficult. But really, when I use pro printers, what I see on screen is what I get in a print.
On the TV; LED!!!! They have the deep blacks of plasma, but non of the problems. Blacks on LCD suck! But LEDs are more expensive.
If you buy from "Best Buy", don't listen to anything they tell you, they will lie. Do your research! Consumer Reports is regarded as reliable.