Thank you for this.
See the next post, avsforum.com is a really good source for info, although it can be a little overwhelming, and keep in mind many of the people there are somewhat anal-retentive videophiles.
Also, my comments about Samsung and LG were in particular aimed at their Plasma products. I think Samsung does make some good DLP products. Not sure about either of those companies' LCD products. Keep researching a little more - I know it's a pain, but you at least want to rule out products that are known to be kinda crappy.