Thanks! There isn't a direct aussie dollar to steem path at the moment, you would need to purchase bitcoin first (via coinjar or a good aussie localbitcoins vendor etc) and trade that for steem (via changelly/poloniex/blocktrades) and send that into your steem wallet.

I'm considering offering a local aussie dollar to steem/sbd (and reverse) service for a few mates to take a layer of complexity away for crypto noobs - depends how my chat with livingroomofsatoshi goes after this post pays out .