Although you can do most of the work of arranging inbound or outbound
international shipments yourself, it is far easier and surprisingly
cost-effective to let professionals do it.

What you need is an International Freight Forwarder, and there are
hundreds of them in the USA.  If you are shipping less than a full
container, you will need a company that will consolidate your shipment.

A company that I have used with great success is A.W. Fenton Co.,
Inc.  which is now part of MSAS Global Logistics, Inc. an Exel Company.
I have used their Baltimore office and they have been willing to handle
as much or as little of the process as you wish.  To find a nearby
office go to http://www.exel.com/ and look under Freight Offices.

Joe Orens