So the I finally got around to finishing the circuit and PCB layout for the Open Access Control for Hacker Spaces.
Check it out:
The Arduino code and Eagle CAD files for the hardware are available for download at:
Google Code Page
The current version supports:
-2 Wiegand26 RFID door readers
-4 Output relays (5A)
-4 Alarm zones
-Separate 12V (2) and 5v (1) power buses for sensors
-Opto isolated inputs on everything
-Ethernet board ready
Now to get the PCB etched, stuffed, debugged, tested...What could be simpler?