With regard to flat panel monitors, you should check the response time of the display. The early ones were very slow - suitable for TV, but would leave trails, blurs, etc on fast moving graphics like in games, etc. Some of the "faster" ones took shortcuts, like not using all the colours on fast moving stuff. I do believe that the fastest, and most expensive ones have about 6-8 ms response. Depends on what you want to use it for.