Escorts and Babes is good, but I agree it's expensive compared with UK, which is dirt cheap compared with Australia. Brothel come in at around $200 (£110) up to $350 (£200) while privates will start at $350 (£200)and go up to $800 (£450). Most privates are at $450 (£250) and $500 (£280). Bait and Switch is a problem with Asian ladies, how common is up for debate. Sexwork is legal in Australia, and controlled at a state level. For reviews I use Punterplanet which is great, it's where I put mine.
I hope it helps