Thank you for your post.
The Media field in Bento 2.0 translates to a Container field in FileMaker Pro. With a Container field, you can store pictures, movies, sounds and files.
The File List field in Bento 2.0 does not translate directly to FileMaker Pro. You can attach a file into a Container field, and when double-clicked, the file will open in its default application. For example, you can insert a Microsoft Word file, and when double-clicked, the file will open in Microsoft Word. You can also set a Container field to have multiple values, so you can attach several files (images/movies/sounds) to a record.
A Message List field is not available in FileMaker Pro. For those unfamiliar with Bento 2.0, you can attach email messages from Apple Mail to a record.
Although FileMaker Pro has many more features than Bento, please keep in mind that Bento 2.0 was written specifically for Apple Leopard (OS X 10.5.x) to take advantage of integration into Apple Mail, Address Book and iCal, while FileMaker Pro runs on both Mac OS and Windows.