Thank you for both answers.
Redsnail, no, at the moment I dont have the right neither to work or live in Australia and dont know if I can get the permanent visa, but must be difficult to get it. I think that if you study that kind of course you get a year long kind of student visa for trying to look for a job. But the thing is that if you dont manage to get it you must go back home and the license is not the same.
Vikdream, thank you also for your answer too. I have done a lot of research in the industry and also have friends into it, and yes its so hard to get in, but still the dream I want to accomplish. And yes, the last paragraph you wrote is totally truth, and it is something I have been thinking about for a while, it is something important to me as well.
Thank you for your help guys.