What I was hoping to do is use Dynamic Registration for registering for an event. If someone came in that didn't have an account, it would create one for them, or if they already had one, they could use that. I would add a role to their account to provide information specific to the registration. I think I can create a form that will accommodate both, but need to be able to guide someone to the login form if they are already registered (I use dynamic logon).