Mate don't worry too much about stocking up on cold climate gear before you arrive!
There is plenty of good gear in the op shops down here. SHMBO got a great mountain designs parka for 30 skins that would have retailed for $300. In fact, have a good think about everything you mite want to bring down becoz realistically the price of buying here second hand when you arrive is far less than the cost of transporting. Furniture, white goods, etc, plenty of seconded hand options available on gumtree.
And we have Anoconda, Rays, etc just down the road from HIA ( hobart international airport)! Called in today after doing a drop off to jet star.
