I have just spent 3 months trying to decide on a big screen. I was really looking at the Sony 70 inch and the Mitsubishi DLP. I ended up going with a Panasonic AE700 projector. If you can do front projection I strongly recommend looking into it. I spent 2700 on the projector and a very nice screen.
The best advice I can give you is go out to a local electronics store and look at it. There is no such thing as the best tv. What I did was researched the positive and negative took that information with me and previewed them. Most of the negative comments you will read are from very nitpicky people. Half of the things I read about I didn't see.
If you aren't interested in a projector. Take a look at the Mitsubishi DLP. That was my number 1 in picture, the sony was great for shear awe.
