I was recently in the market. I purchased a 47" Panasonic HDTV rear projection with 2 tuners and split screen for just under $1k. Rear projection tv's are starting to get cheaper as they're being replaced with new technology. You shouldn't have a problem finding what you're looking for.
I went to about 8 different stores before I found what I wanted. Best Buy, Circuit City, Ultimate Electronics, Fry's, GoodGuys, Sears, etc. Just keep this in mind; YOU CAN HAGGLE THE PRICE OF A BIG SCREEN! Despite what they tell you, the prices aren't final. I knoced $200 bucks off the floor price of my model. Ask about their floor models or returns, some of which are kept in the back or at a warehouse. It's worth the effort. Just be patient.
Also, you'll have a better time bargaining at places like GoodGuys and other small or independantly owned business. They have more room to change the price.