How can I make a time lapse video of my desktop

"Use a cron job or shell script to take screenshots and then compile them into a movie file as Nifle suggested.
Could possibly use this as a shell script:

while true; do scrot -d 60; done

I'm not good at shell so someone could improve this"

"I came across a program Chronolapse, which might be useful for this :

http://code.google.com/p/chronolapse/

I didn't use it much myself, but it seems like it would do what you need, and it's free."