Good on ya Raymond. I'm with ya in Spirit.
An Englishman went into the Sierra Madres several years ago with a Toyota pu and lived to tell the tale in the book, "God's Middle Finger." A very good quick read.
Heavy tourists areas are quite safe, like Copper Canyon. CrashMaster on this board would be a good one to contact. imo
A long read for later,might I suggest, "The Labyrinth of Solitude" by Octavio Paz a nobel laureate. He defines Mexican culture.
Hope you find a good city/town/village to share in The Day of The Dead celebrations, it's coming up in a month.. http://en.wikipedia.org/wiki/Day_of_the_Dead
Best Regards, John