I'd really recommend visiting some of the trapping forums and spend alot of time reading archived posts on coyotes. A few good ones include:

http://coyotesrus.proboards35.com/index.cgi?
http://www.trapperman.com/cgi-bin/ultimatebb.cgi?ubb=forum;f=1;hardset=;start_point= ;DaysPrune=
http://snaremantalk.com/phpBB2/index.php


There are many more as well. After all of the reading you can do, start posting questions to fill in the gaps. Make sure you up on the regulations for your area.