I have 55" Sony HD1080 that I have been very happy with. I would suggest you go with a well known brand. I would also suggest you by directly at a retail store and not online, just in case there are problems, setup questions etc.... I prefer the personal touch.
Is it for poker? I have a 32" that I use for poker.
See here:
http://forumserver.twoplustwo.com/showfl...ue#Post12006203