Scott -
I too have been wondering how to train for Goofy.
I sent out a plea on the weekly thread and the answers from previous participants were pretty consistant. Regardless of which training program they used, they did back to back LRs.
Cross training also played a huge part in the training plans. Like Lisaloves Pooh, I am hoping to add some spin classes and swimming into my routine. I think anything that minimizes impact would work though.
Also, I have started a Yoga class once a week to help with flexibility.
Good Luck!
Cecilia