Does anybody know any cheap places to buy office furniture in Australia?

I'm probably going to be buying a few desks, office chairs, bookcases, that sort of thing soon, but I don't want to pay through the nose for the stuff from office equipment suppliers: it's scary how expensive brand new office furniture is!

And I don't really want to hire a van and take the ferry to Ikea (although I will if that's what I have to do to save a few quid!)

Second hand is fine. Suggestions welcome...

Office Chairs!