We bought our PPoR in Chadstone in March and have friends that recently exchanged on a townhouse in Hughsedale. Prices have definitely moved up a fair bit.
For a PPoR - Chadstone. Approx. $1 - $1.2 mil for a ready to move in house
To Invest - Between Caulfield and Clayton along the princes hwy. Of course, there are pockets to be avoided like Oakleigh South and parts of Clayton.