I've posted my rigs before, but here is my PC:


Here is a pic of 3 of my rigs (one is disassembled)  


And some vids:
http://www.youtube.com/watch?v=wjS6nEDsHEI
http://www.youtube.com/watch?v=WX6uvrPuUYs

The  stuff on the pics is undervolted and makes around 6GH/s