Hi, Randidiane! Although I don't do rotations myself, Cathe's August 2005 "Boot Camp" rotation was a real nosebleed (I read it, and read people's responses to it, but didn't do it myself). If you do a search for it with keyword "August" you'll find it pretty quickly.
Also, I believe the January 2006 rotation, which was to shake off the effects of the missed workouts and food debauchery of the December holiday season, looked pretty intense too.
HTH -
A-Jock