Get the training manuals from one of the other pilots and study up before you go. Learn the limitations section and emergency procedures (memory items). That will put you well ahead of the curve. Read through the systems descriptions, but don't overload yourself with details. Your initial course will cover all that in depth. FSI should be able to provide you with the course prep package. If you know your memory items and limitations you should be in pretty good shape. If you can sit in the airplane and touch the switches, so much the better. Good luck.