As far as cameras:
We have this one http://www.molecamera.com/
We use it when we leave the house so we can see Toby in his crate/playpen. It pans 270 degrees and tilts 150 degrees. You can view it on most smart phones or all computers. Great picture for a camera. We bought it at Costco for I think it was $200. They have a display that you can actually use with your smart phone to see a camera in their offices.
**adding on** You can move the camera from your smart phone or computer to see all angles