I have a Drupal/UberCart based ecommerce site where I sell digital downloads for $1.99. The Amazon Flexible Payment Service ([url removed, login to view]) would allow payment processing via credit card, and then split the payment into two distinct pieces. $1 of which would go to the original author of the digital download, and the other $.99 (minus all transaction fees) would go back to the store. Amazon FPS supports this kind of transaction, called a Marketplace transaction, but UberCart does not at this time. I'm looking for somebody that is familiar enough with UberCart to create an Amazon FPS module for it. Keep in mind, that also means that information regarding the author's payment account needs collected at the time of posting content to the site.