Rashida,
I agree with the other response to your question. I, too, teach PMP prep courses, and mentor project managers to pass the exam. If you want to take a class, I suggest Rita Mulcahy's class as listed in John Filicetti's response. Her class is to pass the exam, not to enhance general project management knowledge. If you want to study on your own, purchase a copy of Rita's book (make sure it's the current version for the PMBOK 3rd edition), read every page and complete each exercise. Rita's materials stay on point and are an asset to passing the exam. Either way, participate in a study group with other project managers, and take the exam within a couple of weeks after completing the course or self-study sessions.
Rita Mulcahy's web site: (http://www.rmcproject.com/class/prep/prep.htm)