Firewire is the only way to capture both video and audio and maintain a high level of both sound an image. It will either be a four pin to four pin or four pin to six pin. The camera being one of those four pins so check your laptop to see if it has the same size connector as the camera or a longer flatter connector with a rounded edge (that's a six pin).

__________________
Better than a poke in the eye with a pointy stick any day...