Capture eMail for Market Press Buyers?

When someone buys something from a MarketPress enabled storefront, how can I export the name and email of the purchasers for use in an email newsletter?

My users have voiced it a priority to capture the email addresses of their buyers for follow up messages/emails/newsletters/announcements/etc.

Aside from going into the "Manage Orders" tab and manually scribing the names to their email, is there a better way? CVS export, perhaps? A link to MailChimp?