On May 9 SBS Insight program ran an excellent debate about the negative effects of WorkChoices.

Intro:
It is now six weeks since the Federal Government's new workplace laws came into effect and already there've been reports of workers being sacked or demoted unfairly. The Government says these are just teething problems and the workplace changes are long overdue. The government is predicting increased productivity and more jobs. While the unions are furious, employers are relieved they can sack unproductive workers more easily. But there's uncertainty over key elements of the laws.
full transcript