Just about everybody wears a hat now. Racking my brain now I think the only style of hat I haven't seen is a "deerstalker" Even widebrim with the corks ( but yes they were Japanese) Depending where you go the further out West you go the more wide brims you'll see. Half way out more caps ( Baseball style) but anything goes.
Don't buy R M Williams boots or clothing, nothing wrong with the quaility but they are now a fashion accessory and way over priced same with Akubra hats. Drizabone coats great if you sitting on in a horse on a mountain in a snow field but far too hot to walk in.
Long range weather forecasters are hinting towards harder Winters ( the last couple have been pretty mild) Victoria's mountains did snow just after Christmas "06 ( middle of Summer) Melbourne has the reputation of the most deranged weather forecasters in the country. As the joke goes "visit Melbourne and experiance 23 cultures and four seasons in one day"
Both Sydney and Melbourne cbd"s will be over priced but a giggle hat
http://www.gascatch.com/store/images/bushat.JPG
should cost under $AUD10 from any outter suburb camping shop
The best insect repelent is Bushmans if you have kids with you get the 20%DEET spray with sunscreen. Just adults use the 80% sunscreen gel. ( green tube< $10)
http://www.bushman-repellent.com/products.htm
Don't bother with the non-sunscreened one, The difference between the two concentrations is the period between re-application. But higher concentrations can be bad for mucus membranes ( so don't use the higher one if you suck your thumb or pick your nose.
Carl