I would very strongly feel that you should put in a couple of years before pursuing an MBA.
This is an ongoing debate worldwide. In North America, students spend the final two years of their academic career pursuing MBA and treat this as a bridge between work and study. In Europe, however, MBA is treated as a more post-experience qualification [and hence, most take one year to complete] and most people come to do an MBA after spending a few years in the world of work.
I do think this needs to be decided after considering many factors, What education did you have so far, what you want to do in life etc., and there is not one correct answer to this question. However, personally, I am inclined to think that post-experience MBA suited me better. I received usual Indian education, leading to a post-grad in economics, but this did not equip me with enough practical knowledge to be able to join Managerial corps. I had to stay in the game, travel, see the world and finally find my vocation - before choosing to do an MBA.
You can also try reading 'Managers, Not MBAs' by Henry Mintzberg
