Dell Home offers the LG 50" 600Hz 720p Plasma HD Television, model no. 50PB560B, bundled with a $200 Dell eGift Card for $399 with free shipping. Assuming you use the gift card, that's the lowest total price we could find by $251. It features a native resolution of 1024x768 (720p), 600Hz refresh rate, USB, and one HDMI input.

Update: Deal above updated to reflect a $50 drop in price.