I have an LG 42" DLP rear projection TV. Its great for the price. I have DVI running from my cable box for HDTV and it looks AMAZING. I'm using my XBox as my DVD player using component cables, and it works for me. The LG tv has different video settings for night, day, movie, gaming, etc. I've noticed in Normal mode at night, you get a slight "rainbow" effect. If you turn it to nighttime mode though, then it goes away. I do not like LCD's and the ghosting effect they give on motion. You need a quick refresh rate to get rid of it, which costs $$ of course. I say look into the LG DLP's, great value!
For CRT's I like the Sony's, they look super sharp.
P.S. The LG projection TV I have is very slim also, much slimmer than the Sony CRT TV's