There are great video tutorials on refining fingers in the afore mentioned goldrefiningforum.com and I may take the plunge after a while, should I ever gather up enough material. I understand that it takes up to a pound of fingers to get a gram or three of refined gold, depending on their quality.
The procedure does seem complicated, and labour intensive, however.
I was just wondering if anyone had looked into this guys ebay product? An ebook sold under the title "Scrap gold recovery from circuit board fingers." Current Item number as of Aug 21, 08 - 220271721298
Quote from listing, "Simple process - remove fingers from circuit board and put them in a cup - add a simple chemical (made for another use) - let it sit 20 minutes - strain through a coffee filter and you have gold!!! Repeat process once or twice if necessary to purify further. If you want nuggets just melt it.
A property unique to circuit board fingers allows the gold to be recovered with super high yield without using dangerous chemicals like nitric acid, hydrochloric acid, cyanide, mercury or aqua regia."
My instinct says "scam" except that he appears to have sold a lot of these ebooks, and his feedback isn't bad.