Glad you liked it Ryan, you'll find some more footage of these AFVs in the November '42 Munitions Parade in Melbourne:
http://www.awm.gov.au/collection/F04716/
And if you fork out $44 plus $6 P&H you can buy this 7 minute newsreel on DVD:
Iron cavalry - Australian made (News From Home No. 46)
Description: Building the Sentinel Cruiser Tank the first all Australian tank. Shows every stage of production including the casting of the turret and hull. Trial run of completed tanks at the factory testing course.
http://www.awm.gov.au/collection/F00741/