I looking for a security system for my Coop. It would have 10+/- cameras and I would like to access it from various computers using Windows and OSX and smart phones.

Ideally it would be a wireless system with the base station in the basement.
The camera's would be located on the lower level and first floor.

The budget would be $250 to $500.

Your suggestions would be most appreciated.

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Loving my BMW