Are you talking about the cruise on the Radiance that begins on April 29? That's the one we will be one!!
Also....no matter how long the line the experience you will have when visiting the Arizona Memorial will be well worth it. Part of the wait consists of a couple of rooms of models, pictures and assorted information concerning the attack on Pearl Harbor.
If you've never seen a submarine the Bowfish is definately a good one to see.
The Frommer's book mentioned is now up to $80 a day.
It is still one of the best...and will help with the other islands as well.
The first time I bought the book it was $10 a day!!!
I read one post that said the souveniers at the International Market Place were the least expensive they saw throughout the Islands.
One last thing - for now - the time change does wild things to ones body....you may be so tired and turn in so early that night that you will be up at the crack of dawn and perhaps then the line at the memorial won't be so long!