You'll be looking for a 6-pin to 6-pin FireWire cable. The image below is a 6-pin (left) to 4-pin (right)

The 4-pin connectors are mostly used to connect DV camcorders to your machine. All Macs ship with 6-pin connectors on them. (unless you have a VERY recent one that only ships with a FireWire 800 port)

Edited by zwei (04/02/09 03:07 PM)