Here is my list of what I think are the best Australian based websites with the gamer and enthusiast in mind.
Whirlpool
Australian Internet and broadband news site with a great discussion forum. On a negative note, its a fair bit over moderated and politically correct. The admins tend to sway discussion into a particular direction.
OCAU
Overclockers Australia, Coined as Australia's busiest hardware community. Latest news from around the web with a really active forum, perfect for the hardware enthusiast.
StaticIce
If you are shopping for PC hardware or gadgets in australia, this is the place to go.
Community Pre-ordering information with links to all the best deals on new stuff.
Online shopping coupons website which only lists codes.