[SciPy-User] ipython, numpy, matplotlib, scipy

Hello list, what is the best way to use ipython, numpy, matplotlib, and scipy together? I start ipython using ipython --pylab in order to get an interactive matplotlib and pull numpy and matplotlib functions to the workspace. But some functions like fft, ifft, ... are reimplemented in scipy. I have read, that it is proposed to use from scipy import * for interactive shells. How does this interefere with --pylab? Thank you for you advice. Wolfgang