Game of Thrones - Season 1-3 on Blu ray [Region Free] @ Amazon $95.80 shipped
Season 1 & 2 is at Oz Gameshop for $79.99 with free shipping while all the sites listed below have 1 season at these prices:
JB Hi-fi - $40.97
Mighty Ape - $45.90
The Nile - $50.99 (free shipping)
Sanity - $57.94
DVD Land - $66.90
All prices are inclusive of shipping costs unless otherwise stated.