I work in TV's and have for 5 years and here's just a little insight into the tv's your talking about.
The sharp aquos has a great pic. but does have MAJOR SOUND PROBLEM as said earlier. The volume can be turned up to 100 and two people can stand 5 feet away and have a conversation without raising their voices at all.
The responce time on the D62U is not so good either. It had problems keeping up with NCAA08 on PS3.
Also not to mention that Sharp is falling in line and doing what samsung did last year by getting Sony to make their parts for them this year. It worked out great for Samsung. They have came a long way in a lil over a years time.
I have a 42" Sony 3LCD that I got from sony for free its only 720P, 1080I capable and my PS3 looked amazing watching I am legeng on blu-ray as well.
If you want quality do one thing. Get a Samsung for the bedroom as well. You won't regret it.
ALSO THE NEW MODELS ARE COMING OUT.
Samsung's A500, 600, and 700's series look amazing
Prices are not going up so no need to worry about that.