There is an effect used extensively in this video: http://vimeo.com/4803532
Notably at 0:56 and 2:45. It is a repeating effect. I have used it before in AE a while ago but can't seem to figure out how to do it again. If someone could please just direct me to where it is and what it's name is you would really make my Christmas Eve.
Animate whatever you need in a pre-comp, then use Echo. Other than that you can surely find video feedback effects in some plug-in suites....
Echo is it! Hiding in the time tools. I guess that makes sense. Thanks for the help yet again Mylenium!
And Merry Christmas!