Welcome!
aspoof is a program that modifies the Apple Airport Extreme binary to spoof the MAC address of the wireless card. Current version works only with the post Tiger systems. Along with aspoof, when installing the files, a script - aaspoof (aut)aspoof - is generated to make the MAC spoofing more automatic and user friendly. Enjoy using the software, spoof away!
If you have any questions, wish to request any features/inform me of bugs, or just comments contact me at stefan (at) cooper (dot) edu.
Download project files from here.