Wiki about Sydney:
"Sydney is the most populous city in Australia, with a metropolitan area population of approximately 4.28 million (2006 estimate). It is the state capital of New South Wales, and was the site of the first British colony in Australia. It was established in 1788 at Sydney Cove by Arthur Phillip, leader of the First Fleet from Britain. A resident of the city is referred to as a Sydneysider."
Wiki link: http://en.wikipedia.org/wiki/Sydney
If you decide to go to Sydney, you'll find a lot of attractions what Sydney has to offer. In official Sydney homepage, there is a lot of stuffs you need, as usually over travel from and to Sydney, travel agencies, hotels, motels, places to visit, restaurants, festivals, celebrations and other things, you might have to stay for good, i would doubt it. Sydney homepage: