I'm not familiar with German immigration/nationality law but are you entitled to something like a work permit as you were born in Germany? This maybe something worth investigating. as I understand Germany does not allow dual citizenship.

The other option is the UK, it's a fairly well worn path by Australians (I got back from 2.5 years over there about 6 months ago). I can't really give you much advice as to what your experience/qualifications will get you in London (I was working in banking) but I would imagine as a working holiday-maker you would probably be earning around 9-10 pounds/hour, depending on what you're doing. Be aware though that the cost of living in Europe and especially in the big cities, London, Paris etc is considerably higher than most anywhere in Australia so you will need to factor that into your budget.

The biggest issue you will have is that you will only be on a working holiday visa and making the switch to a more permanent work permit maybe difficult to get, since it will invariably require some form of work sponsorship which is costly to the company. At least that's the case in the UK.

Welcome to FT too, you won't find a more knowledgeable and helpful crowd on the net. ^