"Can anyone recommend a good but inexpensive mill grinder that
will grind coarse?"

I tried to save money by getting a hand-cranked unit at a quarter
that price, but very soon went out and bought a motor! Why not
start by patronizing a health food store that will grind fresh
for you until you are sure? Several will where I live. Now that
my children are grown up and on their own, I admit I've switched
to commercial flour (see http://sankey.ws/bread.html).

I just bought a Lee Household Flour Mill off of eBay for ~$150.  It's
great... loud, but great.  It can do really fine or VERY coarse...
practically cracked grain.  I used its coarsest setting once to make
corn meal.  It was more corn pebbles than corn meal.  I ran it through
again at a finer setting and it still ended up making gritty cornbread.

The benefit of grinding your own flour is that you KNOW the fats in the
grain aren't rancid.  Most whole wheat flour you buy in the store will
have been sitting long enough that the fats have oxidized.

As for a bread machine, I also just bought a Panasonic model YD250 on
eBay for ~$65.00  Talk about easy!  It's really quiet and makes bread
making fun.  Easy to clean, too.

Good luck.
Max.