Hi Steve, I also the think electric and gas estimate should probably be monthly. Rent is expensive so will be higher, but this obviously depends on where you want to live/size etc.. We pay $25 a week health insurance for a family of four, it is pretty basic but have found the public system to be good when needed. With regards to schooling our daughter goes to a fantastic part government funded primary school and we only have to provide her book/stationary list (which works out around $200 at the start of each year) and pay a yearly voluntary contribution of $80, a few various things throughout the year such as excursions, swimming etc are extra. You will definitely find you spend a lot when you first come over, but it will settle! Good luck with the planning!