Here’s a cool new device available at ThinkGeek.com.

Shuffling around files between various computers can sometimes be a pain, especially sans network. Maybe you have a flash drive or USB hard drive and those will usually get the job done but not necessarily very well. The USB Data Transfer Device is a new product that offers the perfect solution - simply plug it in and start transferring your data between two computers. It automatically displays the entire contents of each PC enabling you to quickly drag-n-drop files and file folders from one machine to the other. The device will support data transfer at speeds up to 25Mb/Sec and has a 4 foot retractable USB cable. Copy stuff here:
http://www.thinkgeek.com/gadgets/electronic/7f0c/