...the exchange rates between the Australian and US dollars are, is fairly "costly".
Several times now I've heard this kind of talk. Am I mistaken or isn't the exchange rate 1 AUD = 0.75 USD? This seems good to me. I'm about to buy an AHPC spinnaker priced at ~800 AUD so I send them $600 USD. This easliy covers shipping and I still get a deal over US spins.
Do I have it backwards or are you hoping for even more of an imbalance? (Or is that it'll be costly for you in OZ?)
Exchange rates