Till the end of today (November 3rd) B&H has a long list of special deals you can get with promo code BHPPE14. For example: up to $350 off many Sigma lenses (including $50 off the 35mm and 50mm f/1.4 Art and 18-35mm f/1.8 lenses):
The BHPPE14 promo code will work only if you use this link to access all of the listings, otherwise you will not see the promo code window:
The Nikon D750 camera now comes with free accessories ($79.39 value):