Well I wanted to know whether can I use Logitech 750e master system into single house. Already I am having 6 cameras but I am looking to have 10 cameras. Can you tell me how can I install additional cameras? I know that there is need of purchasing 750e and 700e? can you tell me how it will work? There is need of setup another computer with the commander since the single installation of the computer have support for 6 cameras only. Let me know if you are having any idea on the same.