From Omaha Maker Projects
Pan-Tilt-Zoom Video Camera
The Makery has a commercial PTZ video camera which would be cool to get up on the OMG web page for visitors to look around at what is happening.
The camera documentation indicates that it accepts PELCO-D (the preferred protocol) and PELCO-P commands via RS-232 and RS-485.
The CodeProject article P and D protocol implementation in C# implements the protocol in C#. See comments from Eric Hamilton from Pelco at the bottom of that page.
The code could probably be used as-is or with slight modifications, or potentially converted to an Arduino sketch with some simpler commands to interface the system with a web page.
The Pelco web page has documentation and some software that might be useful.