Now thinking about this
NVR: Dahua NVR4216-16P Network Video Recorder 16CH 1U 16 POE Ports 5MP HDMI NVR Support 2 SATA HDDs - Newegg.com
6-8 of these: Dahua Technology DAH#N51BI23 Pro Series N51BI23 5MP Outdoor Network Turret Camera with Night Vision and 3.6mm Lens - Newegg.com
Would I need...