I don't about selling them, my website has a comprehensive updated list and I tag new ones.
Here's the site
http://www.palmtreeservices.com.au/video.html
Tell you what i would like to do ... offer a service of going out and shooting/editing them for others.
There's some pretty good crews around and as you know when there's a decent job on everyones too busy to be camera man. Gets like that here to, I had a wierdo palm yesterday that was "stinky" and it would have been good to video what happens.