Gabor, you can find the list of all the study material at the official page http://www.omg.org/oceb/oceb-sme-training.htm
You should allow 400$ for purchasing the references (although many of theme are free) and 200$ for the exam fees (each level). You can pass all the levels at once if you wish.
Now, to save your valuable time (and also mine), I partnered with OCEB certified experts to provide self-paced eLearning material, with recorded webinars and more than 200 test questions at a very low fee. This helps you focus on what is important to know to get the Fundamental.
Now, given your background (MBA, PMP, IT) you should get it easily. Good luck
Hicham

Thanks Hicham. Did you use a study guide? If yes, which one? Is there one available at the certification site? I would like to start preparing for OCEB certification in a few weeks.

The OCEB Fundamental went fine for me. Relatively easy if you study the material carefully. Due to my technical background, the BPMN stuff was easy. All I had to do was to review my business fundamentals. The book ”MBA in a Day” helped a lot and I also enjoyed it

No worries, I wanted to post this about the PMP in my blog anyway. Can you tell me something about the ”OMG OCEB certification”?
Best regards,
Gabor

Sorry Gabor, I thought you were talinkg about the OMG OCEB certification. Thanks anyway for the feedback on PMP, I may get into it when more relevant for my activities.