You'll find Advanced Tuning book particularly interesting. You can go back and read that book every 6 months, and pick up new stuff that you managed to miss just about every time. The other book on standalones can really help with VE tables among other things. For the money, it's pretty hard to beat the books.
I would advise that you practice with datalogging and making changes before renting the dyno. Dyno time is expensive, and not the best place to learn.