I just bought one of the Samsung HLR4667W 46" Widescreen HDTV DLP TV and I love it. Paid about $1600 for it. It replaced my 7 year old 53 inch Toshiba and even though it's technically smaller, it looks bigger because it's wide screen.
The HD channels are amazing. I find myself watching Discovery HD just because of the picture :-)
http://www.amazon.com/gp/product/B00...Fencoding=UTF8
A couple of pics of my theater room (with the old Toshiba still in place)...
http://lbbv.com/pics/theater-room.jpg
http://lbbv.com/pics/tv-room-back.jpg