Black or Yellow Nokia Lumia 520 $123.16 shipped. Cheapest price i could see on it for at least a few months on ozbargain. Also Nokia Lumia 625 for $202.36, only a few dollars more than it has been at Harvey Norman a few months ago.
Lumia 520 Black: http://www.ebay.com.au/itm/251506407796
Lumia 520 Yellow: http://www.ebay.com.au/itm/251506408246
Lumia 625 : http://www.ebay.com.au/itm/251506407325
Remember 2% cash back for eBay purchases at CashRewards
Velocity rewards $1=2points for eBay purchases on velocity estore
Expensive for an old phone, it should be under $100.
Lumina 630 -grey import, just around $149