I'm suprised no one brought this up, but LCD's look better in brighter environments than Plasma. If you can control the light level than Plasma is great, but if there is a chance you will be in a brightly lit room, LCD will probably be the better choice.
Also, some of the new LED TVs really come close to the Plasma in terms of contrast ratio and how well they do black. Generally Plasma's have a much better black than LCD TVs.








