This is what I found in Vista help when I searched Firewire
Set up a network using IEEE 1394 (also known as FireWire, i.Link, or Lynx)
IEEE 1394 is a technology used to connect computers and devices on a
network. 1394 networks are very fast, with data transfer rates between 400
and 800 megabits per second (Mbps). (By comparison, Ethernet networks have
data transfer rates of up to 100 Mbps.) Because these networks transfer large
amounts of data quickly, they are ideal for use with devices such as digital
video cameras or external hard disks. Other names for 1394 include FireWire,
i.Link, or Lynx.
To set up a network using 1394, you need hardware that uses this technology.
Computers. Some computers have 1394 ports. Otherwise, you'll need to install
1394 Peripheral Component Interconnect (PCI) adapters in the computers that
you want to add to the network.
Devices. Most devices that you might want to connect your computers to, such
as digital video cameras, VCRs, TVs, stereos, external hard disks, and
high-resolution scanners, will have 1394 ports built in.
Cables. You will need 1394 cables to connect the devices and computers.
Once you have all the hardware, follow the instructions in Setting up a home
network to set up your network
