i bought SB800 and 70-300vr from B&H. Ordered on Friday, items arrived on Monday/Tuesday (I am in Sydney). I was shocked. So quick. And that was using the cheapest shipping options.
I bought them about a month ago when US dollar was weak. I save a couple of hundreds. Australia doesnt charge import tax for camera and GST is only applicable if value is above $1k.
To save more, you can share the shipping cost with your friends.
Nikon Australia is very strict, they will not honor the US warranty. I think Nikon Spore is less strict, yah? Cameras are not cheap here. If Nikon dont protect the local shops, everybody will buy frm overseas. In Spore, however, you will probably find the difference is not worth the hassle.