I'm interested in the field of life coaching....any suggestions on how to kickstart this career?

I'm not even sure if what I want to be would be called a ';life coach';, but I'm extremely interested in helping, guiding and developing success in people's personal lives and careers. I have a pretty extensive background in sales and sales training/education, but I don't know how to start a business or career like this on my own. Any suggestions on how to make this career not only a reality, but a successful and lucrative lifestyle?