THANK YOU all!! Sorry I haven't responded sooner, but I've been focused on getting the house packed up for the move.
I really appreciate all this information - I was familiar with Timber Hardwoods in Mesa - when I would visit in years past, I always enjoyed going through Timber and seeing what they had, both in lumber and machinery. Hey, if it takes a 3 hr round trip to get what I need, so be it, and if it's a little more expensive, that's the price of being warm and dry year around! Even now in Pennsylvania, I travel 2 hrs round trip to my lumber supplier. I did go through King Mesquite the last time I was in Tucson - I was really impressed. Being an AZ native, I always wanted to work with mesquite, so this will be my opportunity.
I would have thought up north, out of Flagstaff or Payson there might be a mill or lumber source. Even though it's a drive, it maybe worth it to pick up a good sized amount for future use.
Thank you all for your kind help - I'll be back with you when we get there and I get set up - shop is going to be a "1/2 garage" (240 sf) shop instead of 1,000 sf in my basement, so I have a lot of work ahead to get that set up.
Rockshox, I'll PM you when I get there and get set up and maybe we can get together and talk woodworking!