The thing a lot of people don't realize, I think, is that short bursts of intensity can yield a lot- and you DON'T need to be too obsessive about it. Just lift heavy stuff, and do stuff that gets your heart rate elevated for a few minutes- sprints, etc.

You don't need to micromanage everything. Some intense workouts here and there give you the energy you'll have to micromanage the stuff that you WANT to micromanage.