Ooops... you will have 2-110v black plug box's that you plug inside.
Each plug forks into 4 different plugs for 4 camera's. So the 2 small black box's will have a total of 8 separate round female. Each camera's power wire plugs into 1
It's very hard to explain but go view a Night owl 8 camera system and you will see the box's, cables, etc
If I can do it, ANYONE can! People put them down but the HD setups work very well.
Get the wireless cameras.
110v AC power is all you need.