Tanga offers the Amcrest QCAM 8-Channel 2TB Surveillance System with Four Cameras, model no. AMNV2M8-4B, for $299.99. Coupon code "SECURITY" cuts it to $292.99. With free shipping, that's $106 under our mention from three weeks ago, $447 off, and the lowest total price we could find. It features four 2-megapixel bullet cameras, 1080p video recording, motion detection, night vision up to 65 feet, and iOS and Android app live viewing.