Your best option at university would be either an commerce degree in accounting or finance, or an economics degree.
At my work we have financial advisers (Ie. people who look after the superfunds and investments of clients) and they all have a Diploma in Financial Services (or Planning), as opposed to a university degree. The ones I've listed above will give you a sound understanding of the general world of commerce/finance, but the diploma is the most direct and proper qualification an employer would look for. If you do pursue a university degree first then you will find you may receive credit for previous studies if you did do this option.
The ASIC has a requirement that to provide financial advice/services, you have to have completed one of the courses they recognise. This then allows for you to receive an Australian Financial Services Licence (AFSL). You can search here:
http://www.asic.gov.au/etraining/etrain.nsf to see what courses are currently being offered in which specialist areas.