Security Camera installation and configuration are not a simple and obvious task. Don't let inexperienced installers to install your system. Most of the time you will notice how poor the installation is, only when something happened and you need to get recorded information from your Recorder.

I've composed few questions that will help you determined what kind of system you need.

1. What is the outcome that you want to achieve from your system?
2. Do you need a broad view and still be able to recognize people's faces and objects?
   Or you prefer just a general broad view?
3. Do you have a lot of crime/vandal going on and you want to use your video data as a forensic evident? (Or you rather having the system for deterring purposes)
4. Do you know what "Recording resolution and frame rate" means? (This will determine the quality of you recorded data)
5. Do you know what "Display resolution and frame rate" means? (This is the live view in real time, this has nothing to do with the recording quality!
6. Do you know what is the difference between D1 (a.k.a 4CIF) to CIF resolution? (CIF is the most common recording resolution and it's considered pretty poor.

My best advice to you- know the outcome that you want to achieve from your system. We will be happy to advice, furnish and install it for you.

Go here to see comparison between poor and high quality cameras.
There are no cutting corners with excellence!