Avoid the Wai'anae Coast, especially if you're by yourself, lot of cars broken into, homeless camped on the beach, drugs, very impoverished community and very local (I work with families there).
Germaine's Luau
http://www.germainesluau.com/ is out your way and it's one of the better ones. Take your husband to the North Shore and watch the sun go down at Sunset Beach...while you're on the North Shore check out the sea turtles at Laniakea (ask around and people will tell you where to go)...if y'all have the time dive with sharks through North Shore Shark Adventures...grab a 101 Things To Do - Oahu (you can find this small mag anywhere there is tourist info) and start exploring...come into town and shop Ala Moana, learn to surf Waikiki with the Beach Boys...just a few things off the top of my head...enjoy your stay...Aloha