Great news from the Enthought Team!  They are now offering a core version of their Enthought Python Distribution which is free for use and redistribution, as announced in their recent newsletter:

"We're also excited to tell you about a new support level for EPD, EPD Free.  This lightweight distribution installs the essentials: SciPy NumPy,  IPython,  matplotlib, Traits, & Chaco.  While these libraries may not be enough for many current EPD users, we hope that the forever-free installer encourages more people to dive into Python.  You are welcome to redistribute it as an environment for your applications, or pass it along to anyone who needs a simple scientific Python stack. "

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