Membership integrated with Mailchimp and Setting Options

Hello,

We're considering to create an online training portal, and reading about your Membership pluging.

We would like to start be giving a free course (like http://bit.ly/1nO1Srp), to let people get used to the "system", and then charge for the rest of the content (just 1 level: pro).

What would be the best setting option for this: dripped content or advanced?

Then... do you have some integration with Mailchimp? Because we would like to have all members in a single list of Mailchimp, to market them.

Thanks a lot!