After thinking about it for over a year, I finally bought a cheap webcam and have been using it to play around with time-lapse video.  It turns out to be ridiculously easy; I’ve already made a video of the shadow of my building crawling along the ground, a candle burning down, an ice cube melting, and a trip to the video store.  Fun stuff.  As soon as practicle, I will stick some out on YouTube so everyone can see.