Software Carpentry
http://software-carpentry.org/
This site has tutorial materials (lecture notes and exercises) from a course on basic software development practices, designed for scientists and engineers. Well worth a look, even if you don't do any of the exercises, let alone follow all of the recommendations that you'll find here. For example, you might prefer different version control software--rcs or mercurial, for example. An added bonus: the tutorial also contains an introduction to python.
If we had a "rating system," I'd give this one 5 stars.
Thanks for the tip, Raj!
A course on how to develop software
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