The only thing I have to add to this is don't buy a Sony. I have their 34" tube, which is having problems, and their CS sucks. Because of this bad experience and all the running around they are making me do I will not buy another product of theirs again...I don't care how good people claim it to be.
But, if you can get a 34", I'd say get the bigger size, the screens seem like they shrink fast!