Post up a thread on AHB tho bro, theyll point you in the right place!
Edit : I think theres even a website with tour stuff that has its own beer section I recall, read through it on AHB once, thats the best place to look mate.
Luke bought back 10 kilos of hops in his suitcase from the States. All you need is a declaration from the Hop Supplier, and Declare them on Arrival with Customs.
It should save quite a considerable amount of money.
Just for the record: I bought 100gm each of Chinook and Simoce pellets back from Aus. Had no dramas without any paperwork (although we did spend about 15min whilst customs seemed to load us onto some sort of database).
MOuntain Goat was fun...and freezing. There is also an excellent pub accross the road from it that has a great range of craft brews on tap. Cannot remember its name. Think it was the Royston. Also, Lambsgo Bar in Collingwood and no one has mentioned Transport or Young and Jackons. Both opposite Flinder St station. Transport has an excellent range and free beer tastings. Y&Js has the Matilda Bay range and is a gorgeour old pub.