Analytic Elements & Python
I now understand the hype around Python. It really is a powerful tool and easy to learn (especially if you know a little C or C++). Mark has written his TimML (multi-layer analytic element model) in Python, although the focus of the seminar is writing your own simpler analytic element models. Once you do that, though, TimML is easy to use since the concepts follow from the simpler models.
Look for TimML integration into Groundwater Vistas in the near future! It's multi-layer structure really lends itself to a MODFLOW-style environment.