Casey Fleser: GTD with VDP.
"When I originally began considering GTD, I realized that I needed an application to organize all the notes, images, pdfs, and whatever else might by relevant to a particular project. Flying Meat's VoodooPad fits the bill perfectly. As it says, "You put your brain in it". Next I needed to come up with an organization structure I could apply to VoodooPad, email, disk drive, del.icio.us, etc."
Casey shares some Lua scripts that he's written for his GTD system as well. It looks pretty cool.