Predator hunting is fun. I' m still a rookie at it but have enjoyed the hunts I have been on. Here are two great pages to give you a headstart....
http://wcp-nm.com/coyotes/ Bill' s Coyote Hunting Page
http://www.varmintal.com/ahunt.htm Varmint Al' s Coyote Hunting Page
Both Bill and Al have a wealth of knowledge on their pages. Even though they might not live in your area the basics are still the same.
As for calls, it' s going to depend on you more then anything. You can use tube, open reed, close reed, mouth calls, hand calls and electric calls. I have a tube, open reed and a closed reed. I like them all but proably use the Lohman Circe more then any. Good luck to ya' .