This deal has ended.
BuyDig.com has this LG 42PW350 42-Inch 3D Plasma HDTV with 2 pairs of AGS-250 Active Shutter Glasses, a Low-Profile Wall Mount, and a 6' HDMI cable for $529 with free shipping (you must proceed through checkout to see this price). That is $40 less than our mention 2 weeks ago and the lowest price we could find by $20. This 720p TV has a 600Hz refresh rate to help prevent blurring and is less than 1" wide. There's no sales tax (except NJ).