Have to say the exchange in Aus sucks..
That's right, so it is important for me to get another way to join in the cryptocurrency exchange.
I'm not sure about exchanges based in Australia -- Coinjar is the only one I've heard of and I don't know anything about it. But I have an Aussie friend and he does all his Bitcoin trading on Bitstamp. He wires AUD to Bitstamp and they convert it to USD to trade. They're one of the most reputable exchanges on the market, so if it comes down to them and BTCMarkets, I'm choosing Bitstamp every time.
For whatever reason, Aussies aren't allowed to trade on GDAX, which is probably the safest place on the market to dump USD while waiting out price corrections in BTCUSD. However, Aussies can
buy on Coinbase. They cannot sell nor can they use the exchange interface (GDAX).
I've heard that some Aussie traders buy BTC on Coinbase, sell it on Coinjar and wire AUD back to their bank account.