Re: wedding audio

I have a similar question, but about audio at the reception. I prefer working with DJs because then I can edit the dancing to an aiff file of the appropriate song, but lately I am getting more and more brides with bands and my shotgun mic just doesn't sound that great. What do you guys do to get great audio from a band? I have heard that there is a usb device that could be plugged into their mixer to record and then synched up in post, anyone gone this route? If not, what do you do?

Thanks!