The first two are a total waste of money. No need for that data. Ride as hard and as long as you can and time permits.
Shoes, there is nothing more expensive (or painful) than cheap shoes. Don't skimp on shoes since they are the most important thing in so many ways. Buy SIDI if SIDI fit, period.
Pedals, Shimano, and this is from a life-long Campagnolo guy. Look, Time and Speedplay pedals aren't as good.