http://cervelet.deviantart.com/
This artist over here has some pretty good TFs, though lately they're mostly poof, but he's doing a pretty great job involving a mad scientist woman and her roomate (I wonder how'd he get to be a roomate with a crazy scientist girl, were they always friends?) getting into all kinds of stuff for her sake of SCIENCE.
Oh yeah, he drew a pretty great Kangaroo TF sequence a few ways back too. I'll go look for it later.