family trees

I'm interested in how to draw family trees. Been playing with some software phpgedview. My project is to map out the genealogy of the Royal Family of Amber from Roger Zelazny's series of books.

I've been thinking about the limitations of family trees. They are OK to draw if you plot descendancy or ancestry charts but if you try and fit more data in the chart quickly becomes unmanageable, at least in 2 dimensions. Some other people have also been thinking of different ways of drawing family trees. I had in mind a family tree that includes your closest relatives in the most detail, i.e. big, and more distant relatives smaller. The closest to this representation is I think the "fractal" family tree. I also have been thinking about ways of navigating the tree using modern computerized interfaces. Here's something like what I would like to see. A flash family tree. Example = gods_tree.