Active Directory / RADIUS actually working

For a Windows environment in an office, I'm looking to deploy an Airport Extreme setup with 3 base stations to ensure sufficient coverage. The specifications of the Airport Extreme state that it supports RADIUS authentication. On the web I find evidence that Windows Active Directory can provide a RADIUS service. So, one could argue it's fair to assume that it's possible to have an Airport Extreme authenticate with Windows Active Directory (through RADIUS).

But, I'd rather not assume and be proven wrong.

Has anybody successfully created a similar setup?