Hi getmba,
Thank you for such a detailed profile writeup! (And thank you for the kind words about
Your MBA Game Plan!)
Overall, I think your instincts are correct re: your age being an important factor in the process, and making you a tougher sell for traditional, full-time, two-year MBA programs. Cornell's accelerated MBA, INSEAD, and even Ivey (Western Ontario) are all great programs. Kellogg also has a popular one-year program, although for that one you have to have graduated from university within the past seven years.
The key, especially for the schools that offer both one-year and two-year programs, is demonstrating that you have enough business training that you only need the one year program (which spends less time on the basics and gets into the more advanced material pretty quickly). Since I doesn't sound like you have that, I actually do think that part-time MBA programs may make more sense for you.
I really like the sound of your work experience (lots of responsibility, able to show results...), so I think you have a shot at some very good MBA programs, but your age will make these tough for you (not necessarily impossible), and your lack of business training may make one-year programs harder. So, I actually think that some part-time programs such as Booth and Kellogg may in some ways be the best of all worlds for you.
Among full-time programs, if you want to take a shot at some, I do think you're on the right track with Ross and Duke, and maybe Darden, too. But definitely don't discount the part-time option.
Good luck!
Scott