Sopranos seasons ~$USD50 delivered @ Barnes and Noble - USA
But if you do have one then it is well worth taking a look at the Barnes and Noble DVD section. The prices in US are much much better than ours and these guys will deliver to Oz.
The shipping is reasonable too - $9 for one season
You need to use the 25% off code attached to get this price and it will only apply to one item in your cart.
But considering that a Sopranos season in Oz costs around $70 each and Barnes and Noble have them for $50 each without the discount.
Another option is the full series season 1 - 6.2
You can pick it up for $492 then take 25% off - works out to be $380 delivered
Product Total: $492.99
Order Total: $378.22