Videos for business websites is an excellent way to convey a message and blends perfectly with text and pictures to make a message more impactful.
The goal of this video is to explain the reasons why the time is now to begin including video interviews on websites as an effective and engaging medium to express ideas to one's target audience. And as long as the text, photos and video on a given page share the same focus/subject, then I think it can be very effective.
I think the natural place to start would be an interview with the owner/president about their company for the about page on their site.