We are getting the 36" Thermador Induction Cooktop and need ventilation. Our cabinetmaker is making a custom hood for us. I've read some posts but I don't' know anything about ventilation. Which brand(s) should I look at and how many CFMs should be sufficient? I'd prefer to keep the noise down of course. Does a light come with the ventilation? Does that impact people's decisions or are most of the lights equal?