APMEX in America. Best metals dealer I ever found when I lived there.
And they ship to Australia now!!!
http://www.apmex.com/Product/35528/5_oz_Sunshine_Minting_Silver_Bar_999_Fine.aspx
100x 5oz Sunshine Mint silver bars
~$155 each
~$15,500 subtotal
$50 base shipping cost
$0.25 per oz additional shipping surcharge = $125
Total = $15,640 USD, or $16,040 AUD currently.
The frustrating part is that I have a
10oz bar of gold I'd love to trade in for this right now, but I'm not sure how to get it liquidated for the best amount of cash that I can
quickly use to make that purchase.