In my opinion the current national anthem Austrailian Fair is a bit lame and boaring, i like I am Australian but might be a bit of a bugger to sing at the commonwealth games and stuff as it has male and female parts to be sung.
To me Walzing Matilda would be best as its one song that every Aussie knows and just about everyone else in the world as well.
As for the flag, I can see thing from both sides what people mean about changing it and from thoes who want to keep it as it is.
personally i would love to see the union jack replaced by the abbo flag but people shouldnt forget how this great country was founded.
I think Britain has lost its touch and hold on Australia and should let it go just like was done with Hong Kong.
When Britain was Great Britain it had a vast empire but today its lost the great part and is now just Britain and feels like to me just trying to hang on to what ever it can.
So personaly i cant see any point in the union jack being on the Australian flag anymore as Australia is made up from other countrys and not just britain.