I purchased an entertainment.com book before going to Orlando. These books can generally save you money and it only cost me $10 and shipping. I would recommend this particular book for couples who like more upscale dining. It really could save you money. It was almost impossible for me to use any coupons other than McDonalds with these kids (but I did get my money back on savings). There are some really fine restaurants with savings up to $30 per meal at the better restaurants.
Also check out your hotel or condo lobby, as many have free appetizer coupons in the entertainment racks.
We thought about going to the "all-you-can-eat" seafood/lobster/steak buffets, but beware of the cost of approximately $30 per person charge plus beverage costs. My girls "think" they are hungry and only eat small portions so this was not for us. We have been to Medieval Nights previously and really enjoyed the performance. This is approximately a three-hour dinner show that offers wonderful entertainment and a rather good dinner.