OS X Server, Active Directory, Domino and three lists of users

In theory, it should be possible for me to use one of AD, OS X or Domino as the central list of my users and have the other two authenticate to it. The main reason for this would be to manage users from one location.

Does anyone know if this has been done? I have found a document about authenticating OS X clients with Active Directory which is a start, and I know there’s a document somewhere about creating ND6 users in AD (I’ve seen the bit in Administrator, but haven’t tried it).

If anyone has any links relating to this, I’d be greatful. Anything that covers a combination of two of the platfroms (OS X to ND6 or AD to ND6) would also be a helpful starting point.

Thanks,

Steve