Unibooks is ceasing trading– their last day will be April 8th. All books in-store have been discounted by 75%. There are also various online discounts linked above.
I managed to pick up a suite of books (educational and fiction) for around $580 off– my bargain of the year.
Stock levels average (as of Tue 29 March) for law books, medicine, marketing, finance, languages, fiction, art, politics.
Thanks OP, where is the store by the way?