These are some of the presentations I've given that are available online:

Game development in Python tutorial given multiple times - PyCon APAC 2012, US PyCon 2012, 2013 and 2014.

devpi: your one-stop Cheese Shop at PyCon AU 2014.

Don't Do This at PyCon AU 2013.

Web micro-framework battle at PyCon AU 2011.

State of Python at the 2010 PyCon AU and EuroPython conferences (presented as a keynote at EuroPython).

The 7-Day Game about writing a game in a week during the Python Game Programming Challenge.

I also speak at the Melbourne Python Users Group sometimes and used to lecture at RMIT University.

The pyglet piņata talk co-presented with Alex Holkner at Linux Conf Au 2008.