I have been looking around and have come across various types of CCTV systems that are on sale. There are many kinds that vary from those with varying resolutions of the cameras to different storage capabilities, and so forth. I just need a system that I will use for surveillance purposes. In some cases, surveillance system packages are made up of various cameras, recording units, and other parts such as cables. Does anyone have experience with buying CCTV systems for sale recently? How easy is the installation process?