ASAP OS X (10.4) install

This might or might not work with 10.3.

Getting stuff

pythonmac.org has a pre-packaged python and some modules.
From the section Packages for Universal...
get and install You also need to get numpy:
Next get ipython and run:
sudo python setup.py install
from within the ipython-0.7.2 directory.
Then
sudo ln -s /Library/Frameworks/Python.framework/Versions/2.4/bin/ipython /usr/bin/ipython

Tweaking it

Run the following in a terminal:
As 'root' or 'sudo' edit
/System/Library/Frameworks/Python.framework/Versions/2.4/lib/python2.4/site-packages/matplotlib/mpl-data/matplotlibrc
In this file replace
backend : WXAgg
with
backend : TkAgg

Oh yeah there is ASAP, too

Get this. Unpack and run.
tar jxvf asap_osx.tar.bz2
sudo sh install.sh

Run ASAP

Now you should be able to run "asap". On first run you might have to answer a few set-up questions (ipython) and get a lot of font related errors (matplotlib). Ignore these.