Would agree with Property Unity in that whatever your view is of the market just make sure that you understand the full impact of your decision. Run some scenarios and sensitivities of your assumptions to give you an idea on a range of values that could potentially happen.
Only time will...
I wouldn't go so far as to bet on a property price drop of 30%. There is still alot of borrowing capacity out there and banks have the balance sheet to lend. As soon as prices drop the market will react and keep the prices fairly leveled. But I can see a flat market similar to those experienced...