If it will be your intro to ocean sailing, do it with an a experienced travel agent. You'll have a much better chance to enjoy a great cruise, and get better prices and other benefits.

Further, if at any time you have a problem during the cruise, you have an advocate there to help solve the glitch ASAP.  Of course, the cruise line wants as much of your money as possible. Always remember, a good travel agent is on your side, usually for little or no additional charges.