I made a tutorial on this earlier; I sent it in to BA to see if it would be accepted by the moderators. It should, but just in case it doesn’t, here’s the link: http://ssimpossible.blogspot.com/2010/12/how-to-create-sketch-effect-in-blender.html
Here’s a quick image I made using this effect (Benjamin is my name. All that text isn’t really supposed to make any sense, just demonstrate the effect).
Keep in mind that this effect can be used on anything, not just text, as it’s a compositing effect.
