sorry to disagree with you Sap -
Australia Post's Dangerous and Prohibited Goods and Packaging Post Guide 2009
at page 7: SECTION 1 -- QUICK REFERENCE TO COMMON PROHIBITED OR RESTRICTED ARTICLES
The following is a list of some common articles and substances prohibited or restricted in all or some
Australia Post services. ...
[page 9] Valuables (coins, securities, jewels, etc) Restricted in International Post.
See D4.12. See packing requirements at D10.17.
[page 15] SECTION 3 -- OTHER GOODS PROHIBITED OR RESTRICTED IN ALL SERVICES
D3.0 -- General principles
This section defines articles that, while not necessarily dangerous, Australia Post prohibits in all
services, or carries only with specific restrictions or conditions. ...
D3.2 -- Banknotes and Coins
Banknotes are currency notes that are legal tender in the country of issue. Australian notes of
whatever age, currency or denomination are legal tender within Australia.
Coins are coinage in either Australian or foreign currency and includes coins made from precious
metals whether or not such coins have a denomination.
Australia Post prohibits banknotes or currency notes and coins:
♦ in the International Post
♦ in all services within Australia except Registered Post.
In Registered Post within Australia, Australia Post accepts banknotes or coins to a maximum face
value of $A200 in any one consignment. However, Australia Post accepts no liability for the loss of
or damage to any such notes or coins.
D3.3 -- Bullion
Bullion is lump or bulk metal, pure or impure, refined or unrefined.
Bullion includes ingots but excludes manufactured items, such as jewellery.
Australia Post prohibits bullion in all services.
[page 17] D4.2 -- National heritage items
Australia Post prohibits in the International Post all national heritage items, unless the sender
produces a permit from the Minister for the Commonwealth Department of Communications,
Information Technology and the Arts.
National heritage items are objects of heritage significance that are deemed so important or rare that
their export would represent an irreplaceable cultural loss to Australia. They include: ...
♦ works of art, books, documents, maps, diaries, stamps, coins and furniture ...http://auspost.com.au/media/documen...st-guide.pdf
I think these rules are most likely directed at minimizing claims against OzPost, rather than any higher purpose.
In spite of those rules, I have received hundreds of packages via mail, from within Oz and overseas, including from USA, UK, France, Turkey, and others (mostly European, now I think of it).
Back to the OP:
UPS are hopeless. I have no experience of FedEx.
USPS 1st Class is the quickest and most cost-effective way of moving small parcels from USA to Oz.