Parametric(s) and Parametricists Ahoy!!!
I was bumping around the Buildz site and came across a post talking about Performative Design and can only say: Oh Shit, That could be useful!!!
The next link coming gets you to the place to play with an example, from Andrew Marsh's website; Simple Parametric Modelling Experiment.
More great demos can also be found at Anar+
If you or someone you love is a programmer or wants to be, then I think this is definitely a great road to travel...