Good to know. A couple, e.g., or one person will be able to have the perfect picture as they can put teh recliner or love seat at dead center. Unless one has a large group over a lot, like football games, then that should never be an issue. That is good to know because the prices seems to be less for the DLP.
Opinions will vary, but I chose DLP over plasma and LCD because I considered the picture quality to be better for less money. We regularly sit six or more in my living room and everyone gets a good picture.
Though the LG plasma was awfully tempting...
You're doing the right thing by asking around. Read some of the hobbyist sites too. The brand you end up selecting and the screen size are every bit as important as the technology. I used the thumbrule that the optimal viewing distance is 2-2.5 times the screen size. I have a relatively small room, so I ended up with a 46" set.