Get a Zmodo 4Ch DVR with 500GB HDD & 4 CMOS 480 TVL Cam Kit (model PKD-DK40107-500GB) at Newegg when you use coupon code EMCXTVV92. That's the lowest price we found for this package by about $10, plus it ships for free. It comes with 4 waterproof cameras and a 500GB DVR system for storing surveillance footage. It has infrared illumination up to 30ft and can be monitored remotely with smart phones and other mobile devices. There is no sales tax (except in CA, NJ, TN).