Sky high interest rates are unlikely because the world is in deep trouble. The EU and US debt problems won't go away any time soon and things will get worse before they get better.
Remember that our interest rates are already too high for no real reason other than to maintain the already high banking sector profits so I'd like to think that the days of double digit interest rates are gone forever
rates are high in anticipation of the impact of the resources boom and will go higher as it takes off exponentially - this is a key thing to consider. Said it before: if you are not in mining or a beneficiary of it you are about to get smashed