Not top of the range but a decent security system which includes:
250GB hard drive (pre-installed)
4 x outdoor colour cameras
4 x 18m camera cables
4 x mounting brackets
5-way power splitter
This basically has everything you need to set up your own CCTV system.
Think of it as just buying 4 cameras would cost you around £50 each being £200 in itself.
Only 2 main downsides I can see right now (there maybe more but I have not properly looked myself):
1. The cameras are CMOS, rather than CCD
2. No real time display on live mode (does not state in the description, so am assuming it has none).