Wow - you have received some great suggestions!
Quartzsite info with a map and show list can be found at the site
for EZ-Guide to the Quartzsite Shows:
http://www.xpopress.com/QZ-show-schedule.html
…and there is a detailed listing of courses from the Arizona
Designer Craftsmen site: http://www.azdesignercraftsmen.org
Robyn Hawk
http://tucsongemshow.ganoksin.com