hi jeanie,
a lot of choice on gear depends on what sort of riding your going to be doing? its macabre but think about what will hurt you if you come off. australias a big place and from 'sunny' England it conjours up mental pictures of thousand mile straights through bright red dust roads with nothing to see in either direction, when all you might want to do is pootle round the melbourne 'burbs?
so what youve already got sounds fine for now. whats the rain like down there? here you cant go out the house in the summer without something waterproof on, which is why so many of us go for breathable textiles, mine from hein gericke has big zip vents down the front and back so i get the best of both worlds. i generally wear kevlar combats from hardas(giali) if you get wet you get wet, you cant get wetter than wet so it doesnt bother me too much, but like has been said you dont want to get wet and cold, that will distract you. good gloves are a must, ditto decent boots, with ankle protection. that ball joint poking out the side is the first thing to get ground off when you go down the road, horrible but true theres too many kids on scooters here that think nike airmax's and a velour shell suit is going to save them. the local police have a new bit of kit, its a big bit of blotting paper!

dont want to put you off, sounds like you are off to a good start in the right direction anyway, and you found a good shop that didnt screw you first time and wants you to enjoy yourself. if you do you come back again and again, smart business sense AND enthusiasm, places like that are gold dust these days

__________________
dave