Does anyone here know much about security systems?

I have just been tasked to find two security systems. One for our company, and another for our owner’s home.

He wants the two systems to be compatible so that he could swap cameras from one system to the other if needed.
Indoor cameras only.
Wireless so that we can install them easily.
Infrared so that they can picture day or night.
Motion activated.
50-75’ range
Just the cameras and the s/w to operate them. We have routers. No DVD or display. No iPhone App either.

I see a ton of companies selling these things. Does anyone know which companies are better? He wants them cheap, and good quality. (go figure)

Oh, and he wants this all done in under 2 weeks.