Honestly, leave it to those with proper equipment and people hired by the band. Most of the live videos that I see on youtube are completely unwatchable. Unless you are willing to spend $600+ on a halfway decent DSLR or HD camera with an external mic setup your video will look like a shaky distorted POS. And if there's anything I can't stand it's a goober with a shitty camera getting in the way of my shot :P