For all the mud Jetstar are getting over wages, they're by no means the worst out there. Googling yielded:
V Aus
Pre-FO 50000 FO 117500 Captain 179000
Tiger
FO 105000 Captain 175000
Qantas (767, minimum hours)
FO 93600 Captain 169520
J*
Pre-FO 55454 FO 84720 Captain 154037
VB
FO 81150 Captain 151400
ANZ (737, $Kiwi)
Pre-FO 70000 FO 70000 Captain 120000
QLink
FO 51674 Captain 79424
Rex
Pre-FO 30847 FO 42271 Captain 69691
Of course the general conditions vary greatly between all of them.
The real issue is the training costs, which you'll pay OAA $87k for instead of the $50k a typical flying school CPL+MECIR would take. The banks and government will take their slice too. The A320 rating training is also pricey compared to others as was pointed out in the other thread.
On the other hand, if you can survive 6 years on a modest income and missing out on all the "fun" up north then at least you'll probably be free to either stay on and look at gaining command in the next few years or having enough experience to start again at the carrier of your choice.