Have you tried an auto-tracking dome camera? Be careful if you do because once you get hooked on them, it is pretty difficult to keep you from getting more. These cameras represent some of the highest quality electronics available today.
The Pan Tilt Zoom camera or PTZ is one of the most versatile dome cameras on the market today. Not only does it offer the standard electronic features of most other dome cameras, but the PTZ can do just that--Pan, Tilt, and Zoom.