I'm starting Med Surg 2 tmr as well, I hear the instructor is very challanging.
Saunders is an excellent resource, and I have liked the incredibly easy books I've used. The Memory Notebooks of Nursing are also fantastic, esp. if you are a visual learner. Whatever NCLEX book you get, make sure it has rationales, understanding the WHY has been hugely helpful.
Read a little bit EVERY day. Even if it's just a couple questions.
Leave materials around the house where you will see them constantly... I have flash cards to flip thru during TV commercials, a notebook in the bathroom, flash cards on my ipod when I'm at the gym...
Form a study group, or even just a study buddy.
Teaching is one of the best ways to learn, I talk to my cat and dogs as if I'm explaining something to them (yeah, i know it sounds totally crazy but trust me, it works) you have to have a good solid understanding of the topic to be able to break down into simpler terms to explain/teach to someone else. With your study group/buddy, split up the chapters, each person teaches the group 1 chapter, pulling out important stuff etc.
ALWAY take breaks during studying. For every hour, take a few minutes. Set an alarm if you have to. Studying for hours straight actually makes you retain less information.