Currently, I am looking for complete camera kits houstan (https://www.navacool.com/forum/topic/617943/is-it-worth-buying-cctv-systems-for-sale?) that will help Houston homeowners to secure their surroundings. Since I plan to monitor my front door, parking space, backyard, and garage area, having more than one camera is a good choice. There are many security camera systems that provide live view, record, and alert in case of movement. To those that have already installed cameras at their places, what features are necessary? Should installation be paid or is it possible to install such cameras even without any technical expertise?