It will also depend on what you want to do with regards to your future flying. Your Oz license wont be much chop in the EU and when you throw the conversion to JAR on top you may as well have done it in the UK anyway.
If you dont have the right to live and work in Oz, the 12 month visa most poms get, will leave you very limited time to even find work! If you think the situation is bad in Europe, try Australia.
But by all means do your PPL etc as the flying is the best. Maybe check out BAE in Adelaide? They may still do the Euro license. Makes me homesick thinking of it. <img src="frown.gif" border="0">
MAX <img src="cool.gif" border="0">