Most of the casinos here are all CSM on the main floor with a couple of shoe games in the HL rooms.
There is 13 casinos here and the distance between each one is very long, so it is hard to get decent hours in with the travel involved and limited opportunities.
I hate to engage in thread necromancy but I'm an Australian too.
When it comes to counting/AP, its exceptionally hard and arguably not worth it.
Basically the main floors are all-CSM or shoe-games-at-$50+ minimums. 3:2 blackjack starts at $25 per hand (or $30 per hand) at the capital-city-casinos from what I know (I'm not familiar with Darwin).
That said, the comps I've gotten from casinos here (when I'm on an interstate VIP program) strike me as reasonable/fair. Sometimes even a bit generous given I'm a relatively modest gambler. And whilst casinos have captive locals markets here, those who can afford to start a VIP program (usually this requires a 5k or 10k buy-in) are competed over pretty aggressively.
My advice to Australian blackjack players is to save up, get an interstate VIP program, gamble only at casinos in which you're on such a program, and play perfect basic strategy. Given the free drinks you get in the VIP rooms, this is actually the least expensive way to get drunk in an Australian casino.
But card counting or AP is essentially impossible here. The security is zealous.
But at least the hotels are pretty good and even modest action on an interstate VIP program gets you fair (and sometimes generous) comps.