I upgraded to this Samsung LN52B750 52-Inch 1080p 240Hz LCD HDTV from a 37 sharp. The new TV is simply amazing!

Pros:
- Picture quality (given)
- 2 ms response time!
- power: 180 W rating. My 37 in uses 230 watts.
- PIP (watch Direct TV, and ATSC at the same time)
- 1080 P with 240 HZ
- Internet feature for weather, and check stock prices with yahoo widgets
- See picture gallery (download picture from web)
- DLNA (still trying figure this one out with my vista machine kind of works now)
- Sound is already better than my old TV. I never go past 40% on the volume control with TV viewing, and I use the stereo when watching movie with xbox 360/optical cable set up.
- Not too heavy, still a 2 person move job because it is bulky.

Cons:
- No built-in wireless (you need to buy an adapter for that (at least it is .n instead of b/g)
- When viewing fast moving scroll text at the bottom (espn, cnbc..), it seems to fizz out a bit. You can see the text move across clearly sometimes, but you will see blur at other time. This might be a direct TV receiver issue. I am sure blu-ray will do a better job at that. I am not too worry about that.
- Load time on internet content slow