i have no idea why u want to learn it furing ur hsc year... when its not toward ur hsc.. but if its for future prospects ill give u a list of things....
a text book called: GSCE "mucha suerte" thats a beginners based book thats from England... very useful...
also whats handy are them road traveller books with phrases!! there heaps good!
i woudlnt go too far and get the video's and the casette sets.. unless ur really keen, cuz there pretty dear... get a verbs book... there probably the most difficult thing to do with the spanish language along with accents and the four principles of it, agudas, graves, esdrujulas and sobresdrujulas....
gotta study chao