Active Directory Support

I would like to see the ability to support Active Directory for the Username and Password list.

ldap support has been thought of, but it's quite far down on the wishlist at the moment.

;/

Siit - With the nature of VS3, how easy would something like this be? I'm thinking an option within the admin to allow to use either the built in authentication or to choose the local machine user accounts or AD would be really sweet indeed.