If you choose to use a wireless or hidden camera you will need a way to record the video. You can purchase a stand-alone DVR which can cost you hundreds of dollars or you can utilize the power of your existing PC for under a hundred bucks!
The PCDVR is computer surveillance hardware that turns your home or office computer into a powerful, global-wide video surveillance system in 5 minutes or less.
Connect this compact device to any desktop or laptop via USB port. Then you can record live video from the camera connected to the PC’s hard drive. Can connect up to 4 cameras.
The easy to use software included with this kit allows you to view your pets, nanny, babysitter, even your kids from any location in the world via the Internet (static IP required).