A country I would like to visit

One of my dreams is to visit Australia.
I want to travel there because they have an perfect weather, perfect beach and nice animals.
My plan is travel to learn english and live there for some years, may be I will travel for a english course, or for my own means, but, more ever, I only know that I want do it.
I want to visit the Ópera Sidney too. 
I dont know so much about Australia, I remember that a last time I watched on TV, in the news section, that they were having a sand storm and I know too that there are koalas, kangaroos and big ants.
I wached in the TV too that in Australia you can practice surf, they have good waves.
If  I live there I must have a job, I will like work in a zoo, but I must work in any place. In a TV program, of chilians that are living there, they were saying that when they arrived there they had that to work in any job.