When I asked for a good intellectual challenge for Sarah I was told of The Teaching Company. I (and my group of kids) to a look at it and everyone seemed to find a course they wanted!
We've settled on : A History of European Art, Dutch Masters: The Age of Rembrandt (Martin is a Rembrandt worshiper!), World of Byzantium, Vikings (Katherine's request), Shakespeare: Comedies, Histories, and Tragedies (Lisa will not miss anything Shakespeare) and High School Level-Chemistry.
Thank goodness our homeschool group like the sound of it and were willing to pitch in with the money!