Some handy information:
New South Wales
NSW Government Fair Trading – Buying Property
Law Society of NSW – Your Guide to Buying a Home
NSW Government Fair Trading – The Sale Process
Law Society of NSW – Guide to Selling a Home
NSW Transfer of Land Stamp Duty Calculator
Queensland
Queensland Government – Legal and Property Rights
Queensland Government – Buying & Selling a Property
QLD Transfer Duty and First Home Buyer Grants Estimator