Hi
Given that your up in syd, maybe try these guys for tools, books etc http://birdsall-leather.com.au
I have only used them mail order so far, and at first glance they seem to be way better for what they stock than leffler is down here in Melbourne.
When I checked out buying things from tandy, the postage was HUGE! I have found overall the cheapest way to get tandy stuff is from the ebay vendor called stecksstore, he stocks some of the tandy books but only charges quarter the postage.
and, if your feeling like a trip to Brisbane...
http://dimensionsinleather.com/index.htm leatherworking conference in July that looks to be fantastic!
Natalie