Aditionally, I think you should check this map, from a previously sourced paper, where it does make a rather conclusive division between Neolithic (Near Eastern) and Paleolithic (Basque) ancestry. It's probably better than going around Cavalli-Sforza's maps, as it is a much more modern paper.
You want to play with geneaologies... like the Jewish skinhead of the BBC article, you may get burnt.