Dave,
Nice work on your timelapse experiment. There's something so fascinating to see how it reveals details in the world around you that generally go unnoticed.
My first attempt at timelapse was back in 1999. I set up a video camera, shot an hour of footage, and sped it up 1000-3000% depending on the content.
More recently, I've shot some timelapse with my canon dslr hooked up to a laptop for remote control. Is that how you shot yours?