LOL Yes you can OP!
I did it a long time ago with a lot of money sitting in my Paypal in U.S funds, all I did was open a U.S bank account(speak to an accountant on how to do that) and transferred it over! I was at $22,000 U.S at one stage...
Very easy to do once you have a U.S bank account in place, the problem is that if you have over $10,000 in there, the tax man from Australia will look into it and expect a slice of the pie(ways around that too)...
Oh, and your welcome with the MJ Playmaker sale!
I got the guy to buy that off you from Australia, we were just scared of it's condition but the price was right anyway!