in 2006, Lawrence co-hosted a podcast called Nonstopical with Andrew McClelland and Courteney Hocking which can still be accessed here:
http://nonstopical.podbean.com/
Lawrence appeared every fornight for several years on Breakfasters on 3RRR with a segment called THE TRUTH. Some of his spots can be found here:
http://rrrfm.libsyn.com/rss/Breakfasters
The Get This podcasts have been deleted by Triple M but can sometimes be found floating around the web. Episode 39 from 2007 is called Leungcast.