A special on that msn you get too after signing out of hotmail led me to these links, I thought it was amazing and thought I would share with everyone else!
Digilegs Demo (http://www.youtube.com/watch?v=Tx6ej0Vh7HE#normal)
Quad Digitigrade Dragon -- Schematic (http://www.youtube.com/watch?v=mzQMIxQph-M&NR=1#normal)
The first link is for Basic digitigrade legs, the second is for quad digitigrade legs for a Feral Dragon costume