I have a question on study material for taking the PMP after July 2013. 

I took the PMP exam and failed prior to July 2013 changes, I have the PMBOK 4th edition and Rita's 6th edition. I know they added 5 more processes to the new exam and made Stakeholder's a seperate Knowledge area. Do I need to buy the current editions to study for my upcoming exam or can I get the SH processes and use my current material to pass?

Any suggetions in studying and passing the PMP this go around would be greatfully appreciated!!!

Thanks for your help!

Wade