I worked in sales for 15 years 6 days a week and it was a piece of cake compared with the energy I expend in teaching.
People wonder why teachers burn out.
Now that I got that off of my chest, I too am looking for a career change. I have a MS in curriculum development and instructional technology. I like diversity and travel and am looking for a challanging postion. I know I can be a great asset to any production team and am willing to work my way up, but I not sure how to start. I would suggest that before you leap into such a dramatic career change, you should consider a number of points.