Here is the best place to start.  Right from the Hawaii Dept. of Land and Nat. resources website.

http://hawaii.gov/dlnr/dofaw/hunting

It is pretty much self explanatory.   It looks like the non-resident cost is only $95, which is great.  I do not know, however, if that includes tags for any of the game animals or not.  You'd have to dig a little further.

I never thought about hunting Hawaii until I saw this section of the forum. I am really not in the know on it at all but it kind of seems like an interesting propostion. One of my brother in laws buddies from college moved there a couple years ago and sends us emails of his hunting and fishing adventures every now and then. His favorite thing to do is spear fish but he does quite a bit of hog hunting I think too. He used to be quite the elk hunter... he only bowhunted (wouldn't touch a rifle) and only did back country bivy hunts. Now he is all about spear fishing. He makes it sound like a blast though.

There is a show on tv about spear fishing.  They free dive and get some really big and/or incredible and edible fish.  I wish I lived in an area where I could spear fish, but alas, no oceans in Kansas.