TV only recommendation

I'll be very interested in this new nano technology TV from Sony; it is called OLED, I believe. Rest assured there will be flaws with this new nano technology, and these TV's will be the most expensive sets on the market (like LED's now). So buyers of this technology will pay top dollar or wait a year or two for the price to come down.

Unless you have a tilt mount, for the ideal viewing angle, TV should be mounted such that the center of the screen is at the eye level.

I had a 42' panasonic pro plasma years ago when I entered the flat screen arena. It was a 720p model and I could see every difference in the video quality as I upped the quality of the source (bluray) switching from analog component to HDMI connections proved an amazing leap in resolution definition quality. Basic of this story is that I sold it and went to a top flight Sony XBR LCD so that I could use it as a multi purpose display (computer i'm currently on) It works well for me and allows gadzooks of setup adjustment.

If your sensitive and want the best (most natural/realistic) picture then go with the plasma screen. I enjoy well recorded music as much as a great films released by the criterion collection and am scoping out a prospective 65" plasma for the love of cinema as told by the director. I know I sound geeky but I work as a broadcast video professional and look at this stuff alot.
Good luck with your search

The best image comes from plasma. If you can find a Pioneer Elite Kuro model, (Pioneer stopped making them at the end of 2009 because they couldn't sell them for what they cost to build and make enough profit), you will be happiest. They were the reference screen.

At 19' viewing distance you need size more than anything, Sharps 70' LCD is a nice TV and can be had for $2500. FWIW the minimum recommended size for a 12' viewing distance is 70" so for 19' it would be closer to 100"

Go big!