HD IP Cameras
IP CCTV cameras are more than just cameras as they have web server technologies built in to them to transmit alone directly across PC networks including the Internet without a DVR. The per camera cost is greater so if you are looking for a budget multi-camera system at one location then a wired analogue camera system is a popular choice for home and small business installations, however you will get a much better picture with HD IP!
This is beneficial if reading vehicle number plates is of importance in a wide car park view for example. Analogue, even 1000TVL will struggle to give you that detail unless the subject is fairly close to the camera, or the camera is zoomed in to the subjects position somewhat.