First of all, find the best possible school for yourself. When I began my search I found various programs such as INSEAD, LBS, etc., which were far too expensive for me. By applying successfully to Rotterdam, I managed to get into a program that is very reputable, lies at the heart of Europe, is a bedrock of Dutch entrepreneurship and at the same time allows its students to have exchange programs to HEC, Georgetown, etc., allowing the students to have a very international program.
Secondly, budget your MBA. It is an expensive program and you will be spending over 80,000 euros in the course of a year without working. So plan your finances well in advance, whether it be scholarships or financial support etc., or the MBA might end up costing you even more.
Finally, I recommend that you work with Dr. Hubert Silly and the MBA Center. I was in class with a lot of students, many of whom got accepted to INSEAD, IMD, HEC, LSE, ISE, LBS, and RSM. I was very impressed but the quality of the classes offered there and recommend them very highly.