The recommended reading, EC content guides, practice exams, and Study Group 101 is what I mainly used. I also signed up with TCN (not neccessary - not recommended due to expense), which provided high priced study modules that were portable and I took them with me everywhere. Again, I do not recommend signing up with TCN due to expense, but at the time I didn't know any better. I put them to use and supplemented with the other resources I listed above(which is all anyone needs).
Hope this helps. Good luck!!