Thanks. I'm looking at both of those now. However it looks like the CK editor's file manager integration is only for PHP and ASP and my app is Ruby.
https://github.com/galetahub/rails-ckeditor
I'll have to try it out and see how good it is.
There really is a huge hole in the market for a Rails-integrated WYSIWYG editor. There are tons of PHP ones. What I'm seeing is a lot of people are forced to run PHP on their server just for the editor and load it through AJAX.
Hopefully soon there'll be more ports of editors to Ruby.