You MUST go to the
Paradise Cove Luau. We've been to all the islands, and many of the luaus, and Paradise Cove is by far the best.... hands down. Take a shuttle, and plan on doing some drinking. Also, If you can, plan on spending around another $600 and visiting Maui for 3 days/2 nights. If in Maui you must take the "road to Hana". All day trip, and well worth it. Oahu is a great island, but Maui is our favorite. Even if you can't visit Maui Oahu will keep you plenty busy! Have lots of fun!
We didn't get to go this year, and really missed it.