The best place I found to get wild varieties from all over the world in all my searches is this place:
http://www.reimerseeds.com

You can order by placing an order online, printing the order out, and mailing a check to them. I like that...

Take a look at what I just ordered seeds for:
http://www.reimerseeds.com/tepin-hot-pepper-worlds-hottest-pepper.aspx

And I am considering getting some of THESE just for fun:
http://www.reimerseeds.com/scotch-bonnet-hot-pepper-red-large.aspx

You go through the seed catalogs at this website, and you will find things that will totally amaze you - I never knew how many kinds of peppers there were out there, but I do know it's hard to find seeds for some of them.

NOT ANYMORE!!!

 

I stay away from those kinds of things. They are good going in, but evil going out.