Here are some possibly useful links.
Wireless Institute of Australia (The oldest body of its type in the world)
Australian "Foundation Licence Page" - your entry into Amateur Radio.
NSW RTA Safe-T-Cam "Calculator" (Thanks to Sooty for this.)
Vic Roads Permits (B-Double)
Vic Roads Permits (Other - typical Vic Roads - they couldn't put them all together!)
SA Roads Permits (Have you got plenty of time as this is a convoluted site!)
QLD Roads (Even worse than SA Roads site!)
WA Roads (Looks pretty. Haven't gone through it yet)
TAS Roads (Good luck!)
The Trans-Help Foundation has been established to assist transport drivers and their families within the transport industry.
ozprodrivers.com.au site! This site is for drivers by drivers and a good resource.
NSW RTA Links From Wayne VK2PDW - use search engine in top right hand corner.
VK3XRW's Site Rod has a "For Sale" section that might be useful.
VK3VCS Site This is Dave, VK3VCS's personal site.
VK2XB.NET Site A quirky look at Amateur Radio