Most computers these days have firewire ports, and Windows XP supports firewire as a networking device. This is great, because it means you can link two PCs together with a firewire cable and enjoy a blazing 400 Mbps of bandwidth. I frequently use this method to connect my laptop to my PC.

Firewire has much lower latency than ethernet, and a systained 25-30 MB/s is possible. Plus, it's totally plug and play. You can even share a net connection and use the firewire connection to browse the net.

Hopefully, that will help someone out. :)