Australian death certificates aren't cheap but they contain much information. IF the informant knew the information (often indicated by having the correct parent names on the index) you will get from Queensland is
Name & occupation
when where died
sex and age
cause of death
duration last illness
medical attendant, when last saw deceased
name & occupation of father
Name & maiden surname of mother
Informant
Registrar, when & where registered
Burial or cremation - when, where, by whom
minister and witnesses
Where born, time in each Australian state
Where married
age at marriage
name of spouse
Names of living children
number and sex of deceased chldren
The Qld registry doesn't have online ordering, but I think you can order by snail mail using a credit card. Current exchange rate is 60p to the $1AU. Their service has improved by 1000s of % over the past few months - it used to take months to get a certificate or any useful information, but it seems they now have a much better service.
Queensland immigration records (and other archives indexes) are here
http://www.archives.qld.gov.au/research/indexes.asp
and I can check the online electoral rolls if you wanted to provide a name.
Trish