go to www.alibaba.com, you will find a lot of china suppliers there.
You may let the supplier offer their successful cases at yr side, for your contact to check their product, service.....etc.
When u buy from china, you'd better study the product first, the price difference should base on product quality. If u compare price isolatedly, it will give a good chance to cheator to get yr order.
If it is a good supplier, it would definitely have customers in Aus, talk to their customer, it's very important.
Good luck.
Larry
Fiber laser cutting machine
http://qlaser.en.alibaba.com/