Here are a couple of suppliers I have purchased from.

Futurlek online store. Good pricing on components and good delivery provided parts are in stock. http://www.futurlec.com.au/

Microzed online store. Good pricing on pickaxe and components and fast delivery. http://www.microzed.com.au/chips.html

WES Components. Phone orders and you need to setup an account. Stock all common components as well as TV, DVD, VCR, mobile phone and computer parts. http://www.wescomponents.com/

Rod.