Hi Janeymac
Welcome to Poms in Oz.
How old are you and your boyfriend respectively, and what skill and work-experience do you intend to reply in in order to apply for migration to Oz, please?
There is quite a stiff selection process to go through if you want to migrate on the basis of skills and I am not sure whether you are aware, as yet, of how complex and expensive it can all be?
If you have not yet had a good look at the DIAC website, please see the following links and then please sing out with any questions that you might have:
Department of Immigration and Citizenship
Information Booklets - Applications & Forms - Visas & Immigration
I'm in the UK. My sister is married to an Aussie and has lived in Perth for many years. I've been there for short visits but I don't know Perth at all well, so I will leave this part of your question for someone else to answer if I may.
Best wishes
Gill