I'd agree with RainyDay.
You don't mention whether the move to Australia is likely to be a permanent one, but if you're likely to be looking to buy over there, you might find [broken link removed] article interesting. As always, it depends on who you believe, but the consensus seems to be that the property market in Australia seems likely to stay relatively 'flat' for the next couple of years (depending of course on type/location). You might be better off keeping your savings on deposit, with a view to finding better value 'down under' in 2008...