I'd choose the computer, so long as it came with the Internet. I could order just about anything I needed, communicate with friends/family, research anything I might be interested in learning about, and more.
By far a car. I can live without a cellphone, after all I did at one time. I wouldn't have to buy a computer because the company I work for supplies that. So, a car is fine, that way I can get to the airport to fly to the city I am cruising out of. Don't I wish I could do that right about now.
Car most definitely. I work on and with computers all day long-hate them. Cell phones are totally annoying and dangerous to people on the road when people are driving and talking on them. I'm with Greyson, I can drive to my cruise port and get on my ship.
Ugh, I wish I had a good enough excuse to get rid of my cell phone. I was pretty young when I got my first cell, and I had one before everyone else my age had one, so I felt sooooo cool. Over the last five or six years, however, I've grown to hate it. A tiny piece of me resents the fact that people EXPECT to be able to get a hold of me 24/7. I prefer to use my cell as a pager when I'm out and about. Unless I'm expecting a call, I let it go to voicemail... then I check the message, and decide whether or not I want to call back before I get home. I dream of ditching the cell phone and going back to a land line only, but alas, the world has changed.