Lorex offers its Lorex Wireless 4-Channel 4-Camera 1TB Security System with four 720p Outdoor Cameras for $349.99. Coupon code "SAVE15" cuts it to $297.49. With free shipping, that's $253 off and the lowest price we could find. It features night vision up to 120 feet, 720p recording at up to 15fps, HDMI, and H.264 video compression.