It's no secret that I'm a huge fan of Gould and if I had my druthers I'd make students read every one of his books, including, The Structure of Evolutionary Theory. I'm a pluralist.
My friend John Wilkins, a philosopher, visited St. Mark's Square and the Basilica last year. He's on the opposite side of this debate and he offers the best defense of adaptationism that I've seen in recent years. You should keep an eye on his blog, Evolving Thoughts, it's a must-read for anyone who's serious about evolution. I blogged about John's version of adaptationism [An Adaptationist in Piazza San Marco].
This is a rich topic for undergraduates and there are many potential essay topics.
Michael Ruse Defends Adaptationism
Richard Dawkins' View of Random Genetic Drift
Gould, S.J. and Lewontin, R.C. (1979) The Spandrels of San Marco and the Panglossian Paradigm: A Critique of the Adaptationist Programme. Proceedings of the Royal Society of London. Series B, Biological Sciences, Vol. 205, No. 1161, The Evolution of Adaptation by Natural Selection (Sep. 21, 1979), pp. 581-598. [AAAS reprint] [printable version]