Eddie and others looking for some grappler related circuit ideas etc.
I've always really like Scott Sonnons stuff, he takes a very safe and joint friendly approach to everything he has done. If you dont know who he is or what he has done read up on him some. Hes trained some of the best of the best athletes and is a sambo guy.
TACFIT Grappler 1 Workout Video with Scott Sonnon
http://www.youtube.com/watch?v=sGUO4lTjmns
RMAX Sambo Jiujitsu Pullup Training
http://www.youtube.com/watch?v=Mf_Pv1qPZpQ
This ones pretty intense, definitely not for anything starting out on.. but it gives you an idea of his level of fitness.http://www.youtube.com/watch?v=xakrVhaZ-AE
Joey a friend of mine , He's got some awesome stuff!