If you know where to look, you can probably find all you want on your own. Check near pools or ponds in leaf litter, under logs, etc. I've even found them under flag stones on a path.
some of us live a tad too far... although im sure it would be a nice trip. Proberly better to find them from a CB source than wild anyway, what with global amphibian decline and all...
Nice article Seth, I've read a few of trying to learn from their regeneration process to help us, but I'm not sure how far they have got with all the research.