As others have said, one of the best forums is AVS. http://www.avsforum.com/avs-vb/index.php?

It is impossible to give the LCD vs Plasma (or DLP, SXRD, etc.) any justice in few lines or paragraphs. If you really care - spend a few days reading the posts on AVS.

If you want a quick (and biased) opinion read on. Get plasma if you want a large screen. Most LCD's top out at 40-45 inches. You can get plasmas in 50" and above. Plasma has better black levels, and a more 3-dimensional look. Get LCD if you are into serious gaming, or need a very bright display for a non-light controlled room.

Forgot about the "myths" regading plasma ageing or burn-in. Basically issues from the past. I could write pages about this subject.

If you don't need a flat panel check out the Sony SXRD's. Very impressive.

If you want a BIG screen and have the room - go front projection.

Have fun on whatever you decide.