I'm not sure where people keep getting this idea on here that a GPA of less than 4.5 will get you into any school in Australia. Check the ACER guide, most require minimum 5, some 5.5 (out of 7). A couple of schools don't use it, but it's the first hurdle for most. Is a North American GPA different or something ie. is 3.5 not the same as 3.5 GPA in Australia?