G'day and welcome from Australia Nathan.
Pipe tobacco is outrageously expensive here - $125 for 50g - so I get mine from
www.4noggins.com
They ship all over so just place an order and they know how to handle it.
4noggins has some very good house blends worth checking out [Jesses Own is a mild yet very tasty English with Perique and their Butternut Burley is the same as Scottys BB but much cheaper].
In case you haven't found this already -
www.tobaccoreviews.com is an excellent resource, especially when choosing untried before blends [JimInks reviews are particularly helpful]