Peter Hurley gives a two hour talk at B&H. See the free video here.
Peter's four hour training video is phenomenal. You can find a link to it from his website, where he has it for sale. But here's a no-cost way to get a pretty good taste of what makes Peter so successful as a photographer and a teacher. Since he's giving a free lecture at B&H, expect a lot of products described and recommended. But there's still a lot of meat to it. Just don't get hung up on the equipment.
Because it's not about the equipment. It's about the relationship with the client, and the technique that gets applied.