Hello
I read your Post. In your post you mention different types of cameras. These cameras are good but my suggestion is you use following security cameras for your Retail Store.
4 Camera System
4indoor cameras, 480 TVL,
4 channel stand alone DVR with 500 GB hard drive
17” LCD monitor, power distributor, coax power cable
Up to 6 hours labor
One year warranty on parts and labor -$1,999
8 Camera System
8 cameras (2out-door/6 indoor), 480 TVL
8 channel stand alone DVR with 1000 GB hard drive
17” LCD monitor, power distributor, coax power cable
Up to 8 hours labor
One year warranty on parts and labor - $2,999