If you get good grades and secure internships whilst doing your degree you will likely be head hunted upon completing it. From what I've heard though, most of the work when you are starting out involves sitting in your little office cubicle, slaving away on a computer by analyzing data in relation to clinical trials and surveys. If you like that idea of working in a library type enviroment with little social interaction, then the money isn't bad (don't think it would be $100k+ though).
Otherwise you could look at doing honors and research based work, and then attempt to secure a position with a drug design company; most of them however are in Melbourne. This is an exciting field at the moment due to the still developing paradigm from creating drugs via brute force / high through put screening, to crystal receptor structure - molecular based drug design.
Most of these companies are starved for funds though, if you join the company and it succesfully licenses or develops a pharmaceutical you would share in the rewards ($$$), however if the company goes belly up then you may end up living on the streets for 6 months.
Finally you could do some post graduate courses in quality control / assurance (mainly chemistry courses on performing HPLC etc...). Your then responsible at a production plant for a pharmaceutical company that all batches of the drug are tested and meet the high standards of the good manufacturing practice.... This is one of those jobs where it's difficult to get experience, and no one wants you without it; however positions like 'Senior quality assurance officer' are often advertised with salaries of $120k+ pa.
