As explained here you can set auto login for a user account in Windows XP by setting the right option in control userpasswords2.
My question is now: Is it possible to have this autologin delayed - say 10 or 20 seconds - to allow another user to login instead?
We have this family PC with a 80/10/10 usage pattern, so we think it would make sense to have the 80% user login automatically and allow the 10% users as small delay to login instead.