Suggestions for bulk spice grinding/grinder?

[hooliganyouth]

I currently am grinding a lot of my own home made spice blend in a Mr. Coffee grinder. While this is fine for small batches I want to start grinding and blending larger amounts. I realize that there are companies that will do this for individuals but have no idea how it works.

I am wondering if any of you have any advice about the following:

a) A brand of bulk spice grinder - is there something between home use and industrial?

b) How do spice companies work?

c) What's an accurate method for keeping the same flavor?

d) What non-lethal/non MSG preservatives & "de-clumpers" would you guys suggest.

Thanks in advance for your help.