P.C. Richard & Son offers the Samsung 51" 600Hz 720p Plasma HD Television, model no. PN51F4500, for an in-cart price $349.97 with free shipping. That's $20 under our mention last week, $50 below the lowest price we could find for this TV with pickup, and the best deal we've seen for this model. Features include 720p resolution, 600Hz refresh rate, USB connectivity, and two HDMI inputs.
Note: It's not guaranteed for delivery by Christmas.