Try the following
-free flow of beer
-free corkage waived, if not 1 time payment of corkage for unlimited liquor/wine. (u calculate see which one is more worth it for urself)
-helper's room (1-2rooms)
-Bridal suite (1-2 nights)
-paying based on 2008 pricing
-free 1 bottle of wine per confirmed table
-got any credit card that has promo with the hotel?
-if deposit is >3k, and u're short of cash, can try to ask to pay 3k now, remaining pay 3 or 6 months b4 ur AD.
-carpark coupons & invitation cards - see if u wan to negiogiate for more.
-if rom on the same date, ask if they can give u a place/room for the solemnisation with ur family and close friends.
-if u staying for 2 nights, ask for second night breakfast and dinner buffet at their hotel restaurant
basically that's all i can think of.. heh..