The Stuart Highway is the main north-south highway in central Australia from Adelaide to Darwin. During a bus tour, we covered much of the highway from Erldunda near the south end of the Northern Territory all the way up to Darwin, except for a swing over through Kakadu National Park. It's not a terribly scenic drive, but we had a handful of interesting stops along the way.

Mark Wasson, http://www.markwasson.com > Trips has detailed summaries of my trips