Sounds like CITCON Melbourne was a huge success. Reading about it made me think back to CITCON Denver in April, and what my team is doing differently as a result of what I took away from that. The biggest concrete change is our sys admin is working on moving to Hudson instead of CruiseControl. He's setting up a new build machine with it.
Another takeaway was how intrigued I am with behavior-driven development and tools such as Easyb, although I'm not sure yet how or whether to apply it here. It did affect my thought pattern when writing test cases, although I know BDD is supposed to be about coding and design, not customer-facing tests.