Don't neglect your modern scholars either! loll
If you want some excellent quotes and information - well I completed the 2007 Ancient History HSC exam, and it did involve a question on Spartan religion/religious festivals. So I'm largely confident in my notes on the topic
What I can say is, well, there are your typical average quotes, unremarkable in every sense and excessively overused by the majority of ancient history HSC students - and then, there's the type of citation that makes your HSC examiner want to orgasm.
In any case, I wish all you ancient history kiddos luck - Pompeii is still a relatively new topic, so look to the sections of the syllabus not yet covered by previous HSC exams - I doubt they would try to cover syllabus points already covered, but it is possible, so be wary of that also! and yeps - good luck for the HSC! (The exam will be alot easier than you think LOL)