ppi2pass is the way to go. I did a few things to pass:
(1) I signed up for their passing zone where I could take this online review course ($95, back in 2002) and could ask any question no mater how stupid. They also set a good schedule to follow so that I can prepare for the test. The instructors that are monitoring/answering the questions will also post some "typical" problems that you can try to answer.
(2) Get the book (yellow/blue) put out by PPI "Mechanical Engineering Reference Manual for the PE Exam, 11th Edition
Michael R. Lindeburg, PE, 2001, 1396 pp., hardcover". This is the key to passing the test!!!! Take this book and try to do as many problems as possible in the book. My personal observation is that the questions are harder than the actual test but at least it will get you prepared.
(3) You can order the sample test book by NCEES but I can tell you that their questions are actually easier than what is on the test.
I can go on with more suggestions/tips but it would bore the crowd, so if you have more questions, you can email me at
[email protected] and I will be more than happy to help you as best as I can.
Good luck.