I’ve been doing it for a year and a half now using Ustream. At the 720 30SP setting only does the camera allow you to natively stream though firewire. For Ustream the audio will follow the video, other programs such as vidblaster need a separate input. You also have the HD/SD setting next to the firewire port that you can change from a 4:3 to a 16:9 aspect.
Matthew Kent
Assistant Technical Director dctv23