Standard $4.99 p&h charge applies per transaction and you can purchase as many items as you wish, but you will only receive one FREE item per transaction …
Prices are competitive … I just went and compared with Borders and they didn't even have a lot of the titles I was looking for in stock. I have made two separate orders and was able to claim the free book each time.
If you are in Melbourne, they are having their warehouse sale on Thursday and Friday. It is in heidlberg not far from Latrobe Uni. I can get address if anyone interested.