Where are you now? Onshore or offshore? And where did you read that it is difficult to open a bank account after 6 weeks? After 6 weeks of what? PR grant, visit, residency??
I hope you know that banks allow you to open a bank account with them as much as 6 months prior to your visit. Look for 'migrant banking' from NAB for instance. I did this myself about a month before I landed.
As for recommendation, I would suggest NAB as their account is free (i.e. without any account maintenance fees). CWB too provides this, but is free only for the first year and subsequently it is free of maintenance charges only if you transact a certain value each month with your account.
As for ATMs, I don't know. Never really needed much cash currency, but when I did, a NAB ATM wasn't far away.
I hope you know that banks allow you to open a bank account with them as much as 6 months prior to your visit. Look for 'migrant banking' from NAB for instance. I did this myself about a month before I landed.
As for recommendation, I would suggest NAB as their account is free (i.e. without any account maintenance fees). CWB too provides this, but is free only for the first year and subsequently it is free of maintenance charges only if you transact a certain value each month with your account.
As for ATMs, I don't know. Never really needed much cash currency, but when I did, a NAB ATM wasn't far away.