I'm planning a trip to Australia sometime next March or April. I'll probably have a week or two to visit, sooooo.... Any tips on good places to stay or fun/interesting sites to visit? What kind of public transportation is available? Trains? Buses? How easy is it for the average Joe to get from city to city without a car? Does one need a visa to enter the country (or any other kind of special paperwork)? If you were going to recommend one place to see or visit, or one cultural experience unique to Australia to try, what would it be? I don't know much about the land down under, but I know I want to go, and I want to have a good time! Thanks in advance for any tips or advice!