There is 35 currency exchange locations currently available in Brisbane, Australia on this page. Making 10 overseas ATM withdrawals worth $100 with an Australia Post card and then closing the account, he said, would cost $35, while spending $1000 using a Commonwealth Bank bank card, including two $250 overseas ATM withdrawals, would cost just $25.
There are many currency exchange shops in the Brisbane Airport and throughout downtown Brisbane, so you'll never be without easy cash. Make sure your debit card is linked to the correct chatswood foreign exchange currency before using an ATM, otherwise a foreign exchange fee applies. Every time I'll compare them to banks, amex, AusPost and other exchanges and they are always the best.

This smart new account lets you manage your money in over 40 currencies You can hold your money in several different currencies in the same account, and then switch between them using the mid-market exchange rate, and with just a small transparent fee.
Using local bank details means you avoid the need to make an international transfer and you also avoid the pesky intermediary bank fees that come with international SWIFT transfers You can also get a linked TransferWise debit Mastercard , which you can use your AUD balance to pay directly for goods and services, and beat ATM fees entirely.

Travellers cheques, especially in foreign currencies, are generally not accepted except by hotels and big stores and tourist shops. A less expensive option is to change some Australian or US dollars at your hotel, a bank or a bureau de change (beware: those at airports won't offer the best rates).
Take your hard-earned dollars to one of those counters at the airport, convert it into another currency then back again, and you're guaranteed to nearly halve your money. Don't get ripped off - make sure you're getting the real exchange rate for your money.
They have free overseas bank withdrawals and you get just as good a rate on international ATM withdrawals as you get at any exchange place. Pay $0 international transaction fees and $0 overseas ATM fees when you use a foreign currency linked with your account in a country that uses that currency.