Go to the Google Local Business Centre http://www.google.com/local/add and register for a listing. NB Fill out the required info as completely as possible and do not stuff keywords into your title. It helps if you have multiple directory type listings elsewhere that all reflect the same info as far as possible so get your Truelocal and Yellowpages entries up to speed too.
For more information on search engine optimisation, please contact our search engine optimisation department on eclicks@magicdust.com.au