This month Jimmy (@pjimmy) gave a talk on nServicebus. He gave two talks that night, the first focusing on the NServiceBus framework, it's API and the messaging patterns it enables. While the second talk provided a look at how to architect SOA style systems that can be deployed as a collection of autonomous services.
I recorded his first talk giving an overview of nServiceBus, which you can view below.
You can also view his previous lightning talk on being an 'Agent of Change' that he did at another Melbourne Alt.Net event.