TigerDirect offers the refurbished Samsung 51" 600Hz 1080p Widescreen Plasma HD Television, model no. PN51D530, for $599.99 with free shipping. That's $234 under the lowest total price we could find for a new unit. Features include a native resolution of 1920x1080 (1080p), 600Hz subfield motion, 0.001ms response time, two USB ports, two HDMI inputs, and VGA and other video inputs.

Note that a 90-day Nuko warranty applies.