It is easy to compare the prices and options available if you already have access to the internet, either at home, via a friend or in a library. You can individually search the big service providers (e.g. Telstra, Optus, iiNet, or TPG), or visit a comparison site such as BroadbandGuide, WhistleOut or Broadband to get information on smaller but potentially competitive providers.
Enter searches such as ‘compare fixed broadband’ into a search engine (e.g. Google, bing or Yahoo!) and you will discover helpful sites such as Whirlpool that combine the experiences and opinions of real-world users; the comparison sites can also provide useful information like WhistleOut’s guide to calculating your data needs or Vodafone’s mobile broadband data calculator or AT&T’s calculator which, although US based, also has a very good table of usage types and corresponding data requirements.