If you are looking to convince a colleague (or yourself) to use Python for research, check out 10 Reasons Python Rocks for Research.  It goes into just enough detail without getting too long, with much of the focus on Python as a language for scientists rather than the research-oriented tools that are available.  Some credibility is lost at the end with a statement that the distribution system (distutils) is "well designed", but maybe in a year or two that will be true.

    4           10