Living and working all over EU for the last 5 yrs or so, and was back in Aus over xmas and New yrs... Can say that Aus is now more exp then EU by all means... The cost of living compares to when i left in 2007 has skyrocketed, and to be honest the cost of most everyday things here in the EU hasnt changed much from what i paid 5 yrs ago when i got here...
105K is good money, but the cost of living in aus is def a consideration you need to take seriously!