You can use your own laptop and wireless card. The Sovereign is not set up for shipwide wi-fi so you are limited to the internet cafe and business center and some adjacent areas in the Centrum. Internet is 50 cents per minute, or you can get a package of minutes which lowers the minute price. I forget the costs of the packages but I usually get the one with the most minutes. Bear in mind that shipboard internet is not especially fast. You are using a satellite link and my experience has been that it isn't that much quicker than a modem connection, although there are occasional bursts of speed.