Easy insertion of images into the content being edited

Although the editor provides a very clean and easy to use image insertion button, this method requires us to know the exact URL of the image. On the website I'm creating, I'd like for users to be able to upload their images as a node and then use something like the img_assist module to incorporate these images into content they create. Obviously one method would be to integrate the img_assist module more closely with WYMeditor, but I'd be happy with a different method as long as it allows users to quickly reference the URL (or img_assist filter) for the image they want to insert.