To prepare for training, I would suggest you tell your family you will be very busy. Let the girlfriend/wife/significant other know that you will call, but not for hours on the phone, as you will have little money and less time. Get your life in order so that you can concentrate on the task at hand.
I would NOT suggest that you find any gouge, training materials or memory items. The memory items changed twice during my ground school, so I had to re-learn some of them. You are best served by getting mentally prepared, and not trying to get ahead of the game by studying anything special. If you want to look at something, I would suggest the 121 and 91 regs, your current ops manual if you have one, and the AIM. Then, when you come to class, make some friends, put your head down, and fly like the pilot you know you are. Good luck, and welcome aboard.