How to collect new names/email addresses and send to manager of a Constant Contact mailing list?

I am setting up a site for an organization that is using Constant Contact to maintain their mailing list. They want it to stay that way (as in, they don't want Drupal to have much to do with the mailing list except collect new addresses). They do want new users to be able to subscribe to the mailing list through the website. So I need something that will have 2 fields: name, email, and then I need a way to send those email addresses to the manager of the mailing list. I see that there is a Constant Contact module for Drupal 5, but not yet one for Drupal 6. It doesn't matter much as I think this could be solved in many other ways since it is pretty simple: collect data, send it to mail list manager. I have been working with Drupal for only a few months and have done a lot of research but I'm hoping some friendly people from the Drupal community may have some suggestions for me.

Thanks.

Oh, and I am familiar with Views, CCK, and most other modules covered in the Using Drupal book.