Hahaha, no idea! Apart from the AU dollar being a bit stronger than the US right now, I'm not too sure. I'm not too worried with that though, if you want them you can just paypal me the US amount and I'll pick them up for you or something. That sounded a bit sinister after just reading it "yeeesss geeeve meee yooouurrr mooonneeyy..." nah Dude, I understand the need and I just want to help.
If it makes you feel any easier, if there is a disney store near you I'm chasing the Marvel select unmasked Amazing Spider-man. REALLY. Want. One.. hahaha, So yeah, in summary don't worry about the exchange rate, I'll check out some prices for you in regards to postage and get back to you if you'd like!
PM me a destination, that'd help. Would you prefer loose shipping or packaged?