Website Like australia.com... should be in joomla or some other good templates which have very easy admin panel.
We want almost each and every features of [login to view URL] for our website. You need to have high expertize in designing. In the admin panel we will have to be able to insert different images as background for any pages we want. Take a deep look to all the pages of [login to view URL] to get good knowledge about what we want.
Good Luck!!!