Mates,
Thanks for your suggestions. Having gotten my hands on a tape of bush bands, I now know that "Click Go the Shears" goes to the same tune as "Strike the Bell Second Mate." Singing Aussie songs is going to be easier than I thought (as long as I bring something to stop the bottles trouncing me bonce ...).
Here's what we will do, so far:
"And the Band Played Waltzing Matilda."
"Morning Town Ride."
"South Australia."
"Wild Rover."
"Black Velvet Band."
"My Old Man's an All Black,"
"Click Go the Shears."
"Wild Colonial Boy."
"Queensland Drovers."
"Waltzing Matilda."
"All For Me Grog."


One thing about singing in this part of the world struck me as odd was the requirement for venue to inform the Ministry of Information to know who is performing ....
Cheers, Allahamdalla Brian