Have you considered Endlers livebearers? Wild-type coloration. Pretty vivid, though.
I'd try and see if there are any ALA members/breeders in your area (American Livebearers Association)
http://66.18.211.163/alapublic/
Or you could try
www.gambusia.net or
www.goliadfarms.com
EDIT- LOL ninja'd by Valerie!!
