The RBA is reducing rates making the property investing very attractive to those seeking yields.  

There is a growing surge of borrowed money into housing, particularly in NSW, where 40% or 2 out of every 5 dollars lent by banks is being used to buy investment properties – the highest proportion in 10 years, last seen in 2003.

And given the likely appreciation of the dollar if they raise rates, that would be better for the overall economy. It does make it less likely the Reserve Bank is going to change rates in the next couple of meetings so the low rates are here to stay, driving prices higher.  This said you should look at the city properties as they are more likely to ride the growth wave and attract most buyers.