Hollo - I'm glad you are in Queensland - I hate it when I give advice that might be wrong in other states.

When you sign the contract - or look at the contract - they will have included a body corporate disclosure statement annexed to the contract. That should outlay all the fees - sometimes the agent isn't aware of them - and you USUALLY are recommended to do a body corporate records inspection search in your conveyancing. I recommend it to all my clients when I do conveyancing (I'm in litigation at the moment)

So if they don't put it on the disclosure notice - nothing stopping you asking the agent what they are. They may be willing to shell out for a body corporate information certificate (different than the search - this costs $49.00 - search costs $200 usually) and the certificate will tell you how much everything is, when the periods are etc, lot entitlement etc - so you can see your percentage as opposed to the other units etc - but the search will go into finer details and tell you where the money in the sinking fund is going.

HTH.