bbergerrr on "Add additional post content text area"

Hello, does anyone know of a way to add a second content text area to the wp-admin post page? The second content area also needs to have add media buttons. Basically, I need the site to display Images, then the title / author / category, then additional content that will have additional images. I found this
http://wordpress.org/support/topic/add-an-extra-text-input-field-on-admin-post-page
But the issue of adding the media buttons was never resolved. You can see an example of how the site currently looks here
http://www.beyondyoga.com/wp2/2014/01/02/being-a-modern-yogi/
The site needs to have the image slider, then the post title / author, then the remainder of the content, but currently the image slider is added in the content. Any solution will do, but it needs to be easy for a noncoder to post. The person who is posting can barely use the shortcodes needed to get the slider to work as is... I know this can be done, because I see it on this site which is also wordpress http://thechalkboardmag.com/pure-mamas-ginger-persimmon-kelp-noodle-salad#sl=3