I reckon you should drop society and culture, because 1. it does not scale well at all, and 2. there is a 5000 word major project that would take up way too much of your time :p
I'm in year 11 at the moment, but am starting year 12 next term and will be doing:
Advanced English
General Maths
SOR II
Ancient History
Extension History
Community and Family Studies
I am currently doing very well in each and was wondering if I could get a 90+ ATAR with these subejects? :D