I got ambitious and started working on some similar to what Hal's sound like. I'm going to try a couple variations of the Supplemental Disc, since it offers the most leeway, as only it spine really has to match the rest of the trilogy. I'll put them up here soon (or at least a sample).
Good luck, Hal! Have you ever tried using The Gimp? It's a free Photoshop-like program, and that's what I'm using right now.