How do I add media to a custom post type?

I want to add some custom fields to allow a user to select items from the Media library for the custom post (in the add/edit view)

Is there a way to do this?

My answer will be in the form of links.

The WPAlchemy meta box class supports this: http://www.farinspace.com/wpalchemy-metabox/
+ tutorial http://www.farinspace.com/wordpress-media-uploader-integration/

A tutorial on how to do it, mainly javascript: http://www.webmaster-source.com/2010/01/08/using-the-wordpress-uploader-in-your-plugin-or-theme/