I'd start by looking at the Skilled Independent visa (subclass number 136). Do you satisfy the basic requirements for skilled migration, and importantly can you attain at least 120 points?
Have a look here and check your points position and whether you also satisfy all the basic requirements of a skilled migration application:
http://www.immi.gov.au/skilled/gener...-applicant.htm
If you do, the first step will be to obtain a skills assessment classification, which in your case will be via an application to the Australian Nursing and Midwifery Council:
http://www.anmc.org.au/international...ment/index.php
An alternative to a skilled application is to look at an employer sponsored visa strategy, though where you have a 136 visa available I'd usually be inclined to go for that pathway rather than one of the employer sponsored options.
Hope this helps.
__________________
Managing Director, Go Matilda,
http://www.gomatilda.com
Registered Migration Agent Number 0102534 and Chartered Accountant (England & Wales, and Australia)
Offices in the UK and in Australia
