I would recommend every aspirant planning to take the PMP test, should test his knowledge of the concepts before they appear for the final test. There a bunch of free resources available online which include simulated practice test, concept videos, chapter tests, etc. which will assist you in preparing for your PMP exam. Take these test before and after attending a classroom boot camp if you are attending a one. These will help you understand where you stand and which areas you need to focus. Read PMBOK and one other additional book along with it. Then take your exam and pass it successfully. These resources are free and also there are paid resources which you can buy and try them. www.PMstudy.com is one of the leading PMP training provider which has a bunch of free tests, chapter tests and videos. Visit http://www.pmstudy.com/PMP-Free-Resources.asp for more details. Add to the list if there are other resources too.