Pharmacy isn't really a great place to be right now :/ Asian families still envisage it as a highly profitable and stable career but it is much less so these days compared to 10 years ago. Like others have said job stability is questionable atm, even for experienced pharmacists - particularly if you want to be paid well as the employers can employ pharmacists who will work for less. This is the case for students who have graduated, they get paid very low so some students are leaving the industry completely because of the limited jobs and/or salary/stability. I know a few people studying pharmacy atm looking to study post grad med or dent, even engineering now. Also, it would be incredibly difficult to start your own pharmacy these days you have the huge retailers such as Chemist Warehouse who simply dominate the market. They purchase in absolute bulk and sell at very low prices and are driving private owners and businesses out of the industry, simply because the latter cannot compete. I'm currently working at a chemist and I can tell you now that it's not exactly what you'd imagine it to be. The big retail chemists only care about profits. Management and the owners push the franchises to sell more, then everyone in the chain tells people below them to do this do that and at times due to this, store people and even pharmacists disregard customer health and safety :/ Also, the pay is crap - for everyone, I know a couple of pharmacists who want a pay rise but the employer won't give it... Everyone hates the joint, but hey, you've got to pay the bills and keep a roof on your head.
I think the Oral Health course at Melbourne Uni trains you to become a dental technician so you're not a dentist. Also, I'm not entirely sure but I think you can't do post grad dent with that because you don't satisfy the pre-requisite units for dent. Double check that though! I'd say job wise it'd be easier to get than pharmacy and the pay would be ok - that's just a guess I don't know any specific figures. Well according to this:
http://www.payscale.com/research/AU/Job=Dental_Technician/Salary $30k-$68k~