InfoPath Dev

I'm looking for a method to have a form that pulls off a SharePoint Services list a list of emails of people responsible for an InfoPath form. As each person fills out the form I want to email all of the people on the list.

I would also like for a person to mark that they've already filled out the form as well on the SharePoint list.

How would I go about doing this?

You want to create a SharePoint list to contain the email list. Then you need to add the data connection to the list on your form. You can add the addresses to the To line in your submit logic.