Actually that would be me - I have several DVDs filled with WIP files, not to mention a copy of everything in RoloVault. If only I had a decent way to index it all - at last count it was over 100K files.
Yup, he's got me beat. I've only got a few gigs of unfinished stuff, and most of that is texture files I still need to cut out for foliage. I got through most of it, but I can't figure out where I left off right now, so I have some done that was never uploaded, and more than that not done at all.