Want to know what it feels like to live in a certain type of space? Try something new! Live in it before you buy. Choose a design hotel on http://www.designhotels.com/

Rent artwork for the home
http://www.artbank.gov.au/

http://experts.realestate.com.au/renovating-building
http://www.renovationplanning.com.au/

http://www.sustainability.vic.gov.au/www/html/1517-home-page.asp
BASIX (building sustainability index for NSW)

3D planning tools for bedroom, storage, kitchen and bathroom areas are available on the IKEA website
http://www.ikea.com/ms/en_AU/rooms_ideas/splashplanners.html