While getting ready for my trip to Mazatlan I ran into this page, it's pretty solid info to get an idea on what you need to get started. it seems to be good for all of the mexican pacific so Puerto Vallarta and Cabo are covered to an extent a well.
http://surfishmexico.pbworks.com/w/p...5723/FrontPage
This site has a decent list of the fish you could catch but it includes boat fishing as well.
http://www.reel1in.com/Fish-Species.html