Moomber, thanks for the response, and I certainly see the points raised by you and others. The bottom line is, I like teaching, and I like the lifestyle of an academic. I am not particularly keen on re-entering the corporate sector on a full-time basis (though possibly as a part-time consultant). I have been a teacher for 5 years, and no matter what, I will always be a teacher at heart. I have certain areas which I have great interest in doing research in (though my primary interest is teaching), and basically need to find a good fit for my interests. I am only now beginning to realize how much goes into simply deciding on a program and admission, let alone completion

. I am also not necessarily dead-set on teaching at a certain level school as I am interested in ensuring that I will be fairly well placed and paid upon completion.
The only major issue for me is giving up 3-4 years of full-time income to pursue this interest. That will be very hard...(I have bills). However, if I can overcome this obstacle, I hope to undertake the endeavor of a doctoral program in business.