I am a PADI-instructor now! Thanks to the amazing people at dive-careers.com. They take you by the hand from the first day and guide and motivate you through the demanding but also very educational two weeks of the IDC. And even while being without them in the pool or in the sea with your examiner during the IE, you still feel their guiding hand while doing your skills. So I can highly recommend doing your pro-training with them and faster than you think you are an instructor/MSDT/Staff instructor yourself.
Thanks Mark, Bas, Marie, Igor and Chris.