another thing to remember is that Australia has a strong anglo-saxon heritage, and for the first 150 years or so, England was still "home" to many of the people who came out here, so a lot of our traditions (especially Christmas) are still influenced by the English ones.
so
in our families (dh and mine) we are only now managing to convert Christmas lunch into a bbq or cold meats and salad affair, rather than the full baked ham and hot pudding affair LOL Can you imagine cooking and serving (and eating) all that baked food in 90 degree heat? LOL
we still have pine christmas trees, with angels or stars on top, but Santa's sled is drawn by kangaroos in some places
and lots of people spend New Year at the coastal towns - nothing like the beach on New Year's Eve!
Our winter rarely gets cold enough for snow in most parts of Australia, just a few of the highest mountains get snow for skiiing - mid-June is the start of the ski season.
Our Prime Minister is John Howard.
Our National Anthem is Advance Australia Fair.
hth