I take NOW nutrition's Super Enzymes. I also down about 60g of supplemental fiber per day, so that doesn't hurt digestion either.
Quick movie of me doing calves - I'm warming up with 450 before I go DC:
http://the-personal-trainer.com/Other/calves.mov
This is cheezy as hell but it's the only thing I can film myself doing... I didn't want to waste too much bandwidth, so I only recorded a couple of reps... I'm fortunate enough to have tiny ankles (9" just above the bone) and big calves (18 1/2" at the biggest part). The ankles make my calves look pretty enormous in a standing position.