Hi FrankieP, first trip to the store, EXCITING!! I would say take your time, take a look at all the treasures, dont hesitate to ask to look at things. Hopefully you get a good SA, i dont know what they are like up in Brisbane, but in Melbourne they have generally always been polite, but having a nice, friendly SA really does make a big difference in the experience. Try and be friendly and maybe chat to them and they might be nicer. If you meet a really nice SA perhaps ask for their card (they all have 'business card' type things), then if you call up the store or want to order something, you can deal with them again.
I dont think the Melbourne stores have the new lookbook yet, so i doubt Brisbane would either, Australia seems to get information MUCH later than other places.
Oh yea and Australia dont have the new 2007 catalogues yet, chances are they wont be aware that there is one, but they might have the older blue cover one (this is the catalogue with ALL the permanent lines). They should have the smaller, coloured, glossy catalogues out, and you can take one of them.