Look, I can see how this board can look like it contains a ton of info that isn't sorted and is impossible to wade through. But using the search function is very helpful, okay, so try it. The answer, though, is simple; these sites are discussed on the free board:

MexRxOnline offers them at ridiculously high prices and rock-bottom success rates.
GEHRKES is another source, much cheaper but with a lot less info availabe about his reliability. Search for GEHRKES on the DB boards and you'll find his address.