Haven’t been there, so my advice is limited. Having a laptop is nice if you will use it without being on the web. If you have a digital camera, digital music, an mp3 player etc. then you don’t have to worry about anything if you have your own laptop. Station computers are available, but aren’t always compatible with your camera’s etc. The new computers are set up so that it is impossible for you to download your own programs, which means no camera software.
Most cameras are recognized by windows, but not all.
The best that I can tell, all mp3 downloads are blocked. I can’t verify that, I only know that the sites I’ve gone to won’t work. Band width is limited at McM and even more so at the pole. It’s best to get your digital music before you leave.