What is your preferred type of insulation

[rsser]

Well for those without pykes or sinister motives, the following source may be helpful:

http://www.greenhouse.gov.au/yourhom.../pdf/fs16a.pdf

[Bloss]

look at:
http://www.greenhouse.gov.au/yourhom...ical/index.htm

especially

http://www.greenhouse.gov.au/yourhom...ical/fs16a.htm

[rod1949]

If you have or are going to put downlights in then I would steer clear of all the lose/spray in types cause its an extra expense to provide protection around the downlights.

In my house that I've just built I've gone for anticon under the roof sheeting and fibreglass (R3.3) batts on top of the ceiling.