Hi Lucia,
Try looking on the Teaching Australia website for useful info, if you can't find what you're looking for under past threads/posts. Here's a link to their website.
Welcome to Teaching Australia
From what I can work out, are you going on a visa with your husband's skills? I know you'd need experience in the UK if you were applying for your skills to be recognised as the main applicant - not sure for secondary applicant - but I'm sure someone with more knowledge will be able to give more info.
Good luck on your PGCE. What's your subject?
Zoë