I've chimed in on this one on other threads, but yes please! I think many of us, thanks to you, are in a place where we have developed a good muscle base, have been doing splits for a while, and are ready to try one body part a day style training, but please make it slow and heavy, not endurance! Or any other technique designed to increase muscle growth. I,m not sure about 30 minutes per part, unless we could include some smaller muscle group work in here...30 mins seems kinda long for, say, triceps!
For DVD owners, this would be ideal paired with a couple of long cardio workouts: maybe a hi lo of mixed impact, and a step/kickbox, that could be chaptered and mixed and matched to create a number of different 30 minute cardio workouts to pair with the one body part.
Christine