Dell Home offers the Samsung 51" 600Hz 720p Widescreen Plasma HD Television, model no. PN51E450, bundled with a $50 Dell eGift Card for $549.99 with free shipping. Assuming you'll use the gift card, that's the lowest total price we could find by $45. (We listed it without a gift card for $100 less two weeks ago, since expired.) Features include 1024x768 (720p) native resolution, 600Hz refresh rate, USB connectivity, two HDMI inputs, and more.