IW,
Which part of Oz are you headed for? I have only flown in VIC and TAS where on occasions you can feel at home in UK style weather. On the other hand you can get some fantastic days and there is a great variation of airfields all within an hours flying time of Melbourne and great scenery too.
If you go to one of the large G.A. airfields, MEL Moorabbin, there is a great choice of aircraft availble too.
Take a look at
www.moorabbinairport.com.au
And there is a CASA office on site.
Whatever, enjoy!