Best Buy offers the RCA 50" 600Hz 720p Plasma HD Television, model no. 50PA30RQ, for $499.99 with free shipping. That's $100 off and tied for the lowest total shipped price we've seen for a 50" 720p plasma HDTV. Sales tax is added where applicable. Features include a 1365x768 (720p) native resolution, 600Hz refresh rate, 10,000:1 contrast ratio, four HDMI inputs, and VGA and other inputs.