I’m using fluent nHibernate (automapper) and at the same time use Asp.net Membership, but how do i reference aspnet_Users table?
maybe create a new user table with only the ProviderUserKey as field? and always make references to that table? and use Membership.GetUser(..) to get name etc.
Use Windows Identity Foundation (WIF) and abstract away the whole authentication thing.
http://blogs.msdn.com/card/archive/2009/11/18/windows-identity-foundation-wif-rtm-announced.aspx