Andrew, welcome to the CC forum.
Greg McDonald's Australian Coins and Banknotes (Thirteenth Edition) is the way to go. Costs about $24.95 in most coin shops. You may be able to get it a bit cheaper as a new edition is due out later this year.
Grading of your coins is very important as this effects the value greatly. If in doubt take them to a couple of coin dealers and compare there answers.



















