Okay, this one is a bit of a trick. Breaking it down you have three choices:
- Pack your suitcases full and buy new stuff here.
- Ship expensive, durable, low weight items via US Postal Service.
- Rent a container on a commercial shipping line.
If money is an object, you want to do some research and figure out the cost of shipping an item vs. buying it here. The US Postal Service offers better rates (especially on books and media) than its private sector competitors if you ship it on a slow boat but you will need to survive without your stuff for several weeks. For really important stuff that you need immediately, it might be worth it to pay the extra baggage charge and bring it with you on the plane.
Commerical freight lines are the only way to ship a car to Hawaii. Some cars are worth shipping and others aren't . Generally, you can find good buys on used cars on O'ahu but most new car dealers in Hawaii tag a market-specific price increase on their vehicles that far exceeds what it will cost you to ship a new car from the mainland. This is also the only way to get furniture and other household items to Hawaii but you will not find it cost efficient unless you are shipping an entire house (4-5 rooms).