Electronics Expo via eBay offers the Samsung 51" 600Hz 720p Widescreen Plasma HD Television, model no. PN51D450A2DXZA, for $511.49 with free shipping. That's the lowest total price we could find by $95. It features a native resolution of 1360x768 (720p), 600Hz sub-field drive, USB connectivity, two HDMI inputs, and VGA and other video inputs. Deal ends May 31 at 2:08 am ET.