Newegg offers the Zmodo 8-Camera 1TB NVR Outdoor Surveillance System, model no. ZM-SS718-1TB, for $599.99. Coupon code "EMCWHWB88" cuts it to $499.99. With free shipping, that's the lowest total price we could find by $56. It features an 8-channel NVR with 1TB of storage, eight security cameras with 2.8mm wide-angle lenses, remote access, 720p recording resolution, and night vision to 65 feet. Coupon expires December 25 at 3 am ET.