Have you datamoshed yet?
Here is an example of one of my datamoshing efforts.
This was created for a Deerhoof show which Slinky and Snudis VJ’d at.
Datamoshing is a great way to create interesting video effects using freely available software. I first learned about it after watching a how-to video on youtube by Court13. On their website, they have a free download kit that gets you started brilliantly on your way to datamoshing. All the software for osx can be found (for free) at: wwwcourt13.com/datamoshkit.zip
Thanks to the datamosher tutorial vids: www.youtube.com/watch?v=tYytVzbPky8
There is also an interesting article about Datamoshing here;