I've tried ckeditor and fckeditor plugins, and while easy-fckeditor works rather nicely, it drops my files in a common directory. If I have overloaded image names or versions, they get clobbered.
FCKEditor is great at the present time, but I'll would prefer to be able to capture the image upload into a controller, similar to paperclip, where I can then refer to the image with a unique path.
My other reason for wanting to use a controller is so I can support other "image" documents, such as .pdf, .psd, .ai, etc., that I can render to PNG with ImageMagick for preview in the page.
Right now, for both of these, I'm traversing the html returned by FCKEditor and doing these both in a really messy fashion with all kinds of opportunities for race conditions.