I wouldn't place IT anywhere near high paying cluster of jobs, unless if you have graduated from say ANU(Not in Sydney) or say UNSW and have been hired from very few big IT majors. Yeah Docs, Health Specialist , Investment Bankers ( though rare ) and outside Sydney would be Miners or Some Safety Specialist more or less in Mining and Oil Industries.What are the high paying jobs in Sydney apart from IT jobs? Please throw some light.
In that case a lot of jobs in the construction business (site manager, project manager, construction manager) are "high paying".probably 50% more than the average income. Say 100K?