It seems we're going to be using Scald in our Drupal 7 redesign. I've never heard of it, so after a quick search, turns out it's a Drupal 7 module for media/image management like Media, only different. From what I read, it creates its own entity system instead of relying on the core entity system.
There is a good quick start guide over at OSTraining that should be enough to start playing around. Further down in the comments are some instructions for using it with CKEditor that you'll want to read through.