Funnily enough I am also looking at getting an Oscar in the next few weeks/month and am in Perth.
Have been scouring the net for prices as well, but it sounds like you are one step ahead.
In my searching I found an older post with the following
http://coffeesnobs.com.au/YaBB.pl?num=1241411382/9Hi!. *I have had a Simonelli Oscar for 3 years, and have been delighted with it. *And to my surprise, I found that there is an agent for them in Perth. I had the machine serviced by them about 6 months ago, when the water level probe needed adjusting and cleaning.
I emailed the agent today to ask a few questions, but no response so far. May pick up the phone this week if I get a chance.
If any other CSers have some input I would love to hear it also :)