Both models are 52-inchers, under Samsung's Touch of Color line. The LN52B550 adds a little red to the bezel, while the LN52B750 features grey. Even better, the LN52B750 is now being offered for the low price of $1,699, which is $1,000 under the list price. Just make sure to click through to get that final price.
If you're more of a Toshiba fan, Amazon has five models to choose from, which all include the Toshiba BDX2000 1080p Blu-ray player for free. Here is the link for that deal:
The models include two 46-inch 1080p LCDs, the REGZA 46XV645U and the 46XV64, which is part of the company's Cinema Series. There's also one lone 47-inch unit, the REGZA 47ZV650U, which includes ClearScan 240 advanced frame rate technology. If you want to go bigger, there are two 52-inch models, the 52XV648 from the Cinema Series and the REGZA 52XV645U.
Both the Samsung and the Toshiba promotions will expire at 11:59 p.m. (PST) on January 30, 2010. If you're a little lazy, you have a few extra days to take advantage of Sony's BRAVIA deal. Here is the link:
The KDL-46XBR9 features 1920x1080 pixel resolution, Motionflow 240Hz technology and four HDMI inputs. It also has BRAVIA Internet Video, which provides access to thousands of on-demand movies, TV shows, music and more.
You have a few extra days, since the Sony promotion expires on February 6, 2010, at 11:59 p.m. (PST) Act fast though; they may run out of stock first!