I believe Edouard Manet said it best, "Damn your recursion, Henri. Iteration, however complex, is always more efficient." (extra points if you can identify the source of that quote). It's not clear what language Manet was talking about when he said that, but it's pretty much a universal truth.
GIYF http://www.sprex.com/else/sidman/boite.html
Kent -- http://mail.python.org/mailman/listinfo/python-list