For flights, especially have a look at the links to Adioso and the hot flights list.
For accommodation, depending on where you’re going, realholidays.com.au might be a good one to check as you can sometimes get good value holiday rental apartments or houses. Try sorting the search results by price.
The Travel wiki page should be a helpful starting place:
http://www.ozbargain.com.au/wiki/category:travel
For flights, especially have a look at the links to Adioso and the hot flights list.
For accommodation, depending on where you’re going, realholidays.com.au might be a good one to check as you can sometimes get good value holiday rental apartments or houses. Try sorting the search results by price.