Importing mail ACCOUNTS to Mail?

In order to sync my mail accounts via Mobile Me, I think I'm going to bite the bullet and go ahead and use Apple's Mail in lieu of Entourage. My problem is, I manage more than 30 e-mail accounts for a not-for-profit which, when added to everything else, ends up being about 43 accounts. I really don't feel like manually setting up each account in Mail. I've noticed that I can import messages/inboxes, but I can't find a way to import the accounts. Is such a task possible? I looked for a third-party app and didn't find what I was looking for, either. I'm hoping I just missed something.

Any ideas?