fizzle You may also want to consider a weighted vest to lower your reps and increase resistance.
Norman also suggested stretching http://www.simplefit.org/phpbb/viewtopic.php?t=582
I will need to look into Andy I think you are right some basic yoga stuff we good incorporate into simple fit off days. I have tried -spelling- :) kundalini, hatha, beekrum (that was no joke) and a couple others all of which I really liked. It would also be really nice to have 3-5 basic moves that would stretch and warm up the whole body pre workout. I usually just warm up by doing some planks and back extensions but yoga would be a great addition. Anybody who can suggest some good stuff speak up.
Another great thing is meditation nothing mystical this is a great resource http://www.ucop.edu/humres/eap/relaxationrespone.html
all based on hard science developed by Herbert Benson, M.D. at Harvard Medical School. Great for recovery lowers cartisol and other stress hormones that can be counter productive to our goals.