dtgreer,
As mentioned in my earlier post, I hold both a Six Sigma certification as well as the PMP. To answer your question: "Is certification in Sigma Six worth it?", my answer is: it depends.
It depends on:
1. The organization that you work for (or plan to work for). If they value Six Sigma, then it would be worth it.
2. You. If you prefer to use quantifiable data to assist in making decisions, then it would be of value. You will learn many techniques for acquiring statistics and making decisions from them. If you prefer to manage by "gut feel", and don't ever plan to change, then it may be a waste of time.
Here are a couple of other thoughts, one negative, one positive:
1. Although Six Sigma is still very popular, I have not heard near as much "buzz" about the certifications over the last couple years as there was about four years ago.
2. There are roughly 250,000 other PMP's out there. If you want to seperate yourself on paper, having a Six Sigma certification may help.
Hope this helps!!
JBlack