I've been playing with netpbm (http://netpbm.sourceforge.net/). This allows me to convert the images taken every 30 seconds by the webcam and squish them into a short time lapse movie. I've posted my first 24 hour period here:
http://home.lewiscounty.com/~forhire/we ... 050928.mpg (7.5 megs).
This is the forum/script that has inspired my work thus far (sorry it's in German but the script is in English):
http://forum.2lucky.de/archive/o_t__t_3 ... -mpeg.html
Let me know what you think