I don't claim to be an expert on this but in my opinion, the bigger the better. And according to what I have read of plasma it is the way to go. I have a 60 inch non HDTV Hitachi that has given me excellent service over eight years. Eventually I will replace it with an HDTV set but no way in the world would I have anything less than this size. I would be very much interested in this set if the price is reasonable.
Got my Hitachi RPTV in 2001, non-HTDV as well. Has the self-aligning feature.
Stunning pic from a decent source.
The only 'TV' we have more fun watching at our house is a Dell projector viewed on a King-Size sheet hung on the side of the kid's clubhouse. Plug in the Fender mini-PA system, and we've got an 11 foot diagonal backyard cinema.