I agree with all of the above, although I would not recommend the Georgia Tech class. I found it mostly useless except for the NEC section, I regretted wasting time with it for sure. I would highly recommend Zach's Electrical PE Review (www.electricalpereview.com). The whole course is built off of the NCEES PE exam syllabus with each section containing a 5-15 min video working and explaining a problem. It also includes an awesome live class that's interactive and not some guy reading off slides for 3 hours. I will say however that his code section is a bit weak, and doesn't really get you where you need to be as far as sizing equipment, and doing voltage drops.
Tom Henry's index was totally clutch too. I feel like I got the answers to all but one question with this index. I would recommend the FE handbook too, it has tables that I found very useful--probably because it is from NCEES.
In my opinion there were problems on this exam that no amount of practice exams would've prepared you for, not even the NCEES practice exam. The theory and practice provided in the course gave me confidence during and after the exam.