I got speakers for our local fishing club for over 3 years- one a month. First guy I got I called the outdoor editor of a major newspaper, he was happy to speak free, yes, but we covered expenses, next I contacted several local fish pros and asked them to speak, they or most all will want $. You will have to do a give & take with them on the subject & $. If they guide they need to speak to groups to help push their guide service. The better ones will have their own equipment, U want somebody that has colored slides/computerized show(makes it interesting). Any Joe can stand up in front of group and talk/mumble on for 45 minutes & put U all to asleep. Also we have the outdoor paper the Fishing Notebook in our area, I talked with Bob the editor & he gave me a list of several of his writers that gave seminars, he was a great help. He also let us advertise our meeting/speakers in the paper free. I really enjoyed doing it, met alot of great people.