Anyone know of a cheap postage/courier service from US to Australia

[HIPPEEDUDE]

Bumps,i have done it again & need some urgent help here.
Have two boxes in the US that i need to sent to me. The seller wont send
by USPS despite it only costing $140,which i dont mind so much. However
he wants me to arrange a courier to collect them from him & send to me.
Items are already paid for,i just cant find any service with a decent price
to send. So far the cheapest is $700 dollars,which is utterly ridiculous,this
is almost twice what the items cost.
So any ideas or help is appreciated