I am told that in the States if you do your training on a J1 visa you can then stay for two years. In this time most seem to find work as a flying instructor (you can become a FI over there with less hours than here).
You do your two years and then come back to OZ with around 1000 hours that is enough to get you put on with a decent operator here.
Or you can stay here work as a slave for a year or so with vitually no pay you might then get a flying gig and build some time for very little money. (atleast this was how it was when I was starting out, probably still the same) The end result will be the same but atleast you have travelled overseas and seen how others do it.
I dont think any employer really cares how you got your time just aslong as you can fly when they take you for a check ride.
Anyway good luck