A) I'm full time faculty. I can say my kung fu is FAR weaker now because I'm not on the front lines, but I do get to play with the stuff I want to play with, rather than fight fires all day long.
B) The transition isn't too bad, but be ready for that pay cut and brace yourself for a far slower pace of life. The only thing that moves slower than buracracy in academia is the Catholic Church. ;-)
C) My motivation was stress. I needed time to finish my PhD and I really couldn't take the stupidity of CFOs anymore.
D) Make sure you WANT to teach. If you hate teaching or you hate dealing with students on a constant basis, don't teach.
You also need to make sure you CAN teach. I know it sounds silly, but you might want to take a teaching course or two. It will help level out the learning curve and really help your students.
Getting the experience...hmmmm...Well you could be an adjunct at a school like University of Phoenix, ITT, or Devry. Your local community college might also have positons open.
E) I'd suggest a Masters with some certs. You'll be able to teach at the associate level (and possibly higher). A PhD doesn't hurt if you want to teach (unless it is K-12, then it does very little).
F) Get ready for a culture shock. Academia is VERY different than the corporate world and life moves a little slower. Also be prepared to be out there on your own for almost everything. The support system isn't really there...you more or less get thrown to the wolves.
You might also want to crank out a few publications so that you "look" more academic.
Good luck!