landing page

Hi there,

I've been experimenting with Drupal, planning to migrate a website from Typo3. As a part of the migration, I've been rethinking the structure and setup of the site and would really appreciate your input.

Current setup:

Does anyone know of a module that allows a website to have a coming soon / initial landing page where visitors can leave their email addresses and other information so that when the website opens up for business they can be notified / accounts be automatically created with the initial information?