Ending today, Dell Small Business & Home Office offers the Dell 720p Mobile Series DLP Projector, model no. M210X, for $579. Coupon code "9B47MSNVFNNKB2" drops it to $521.10. With free shipping, that's the lowest total price we could find by $67. Sales tax is added where applicable. Features include a 1024x768 (720p) resolution, 2,000 lumens brightness, 2,100:1 contrast ratio, remote control, USB connectivity, and HDMI, VGA and other video inputs.