Info on cut up technique: http://en.wikipedia.org/wiki/Cut-up_technique
Some links to online cutup machines (including mine that Iz kindly linked to in my last post)
http://vispo.com/cgi-bin/wonder/cutup/cutup.cgi
http://www.fetish23.org/words/cutup.html (based on an older version of mine)
http://gary.leeming.googlepages.com/cutup (includes link to google desktop component)
More links to more cut up stuff:
http://www.lazaruscorporation.co.uk/v4/cutup/links.php