Hi,
Thanks for asking!
Video lessons are so much more popular than audio lessons, that we really are only accepting new instructors who have a video capability.
What you would need is a video camera and video capture card. This would probably cost around $500 to buy, depending on what you get.
We already have a good amount of audio lessons for blues/rock/country/metal. But we need video lessons for all those styles, particulary for country and metal.
If you were a bluegrass or flamenco wizard, we would probably let the video thing slide. Most people only dabble in those styles, and we really want someone who lives and breathes those styles to show us how its done.
Hope that helps.
Jon