Hello from a fellow Perthite
Your first step might be to work out which ereader you would like then where you can source it from. I have a Sony which I love but stock is becoming very scarce there was apparently some still left at some Myers check your local. The new Kobo Touch will be sold by Collins bookstores however that will not be until around September if we are lucky. Your best be will be to decide which one you want and then get it online as there are not many good Eink readers in stock at the local retailers.
There is loads and loads of awesome info on this site and many knowledgeable folk.
Happy reading
Mel
PS I recommend listing your country in your user profile so people realise they are talking to someone from down under