In this Mailbag report (remember those?), http://www.straightdope.com/mailbag/msuicide.html , Dex investigates the link between profession and suicide rate.
I just wanted to point out that the New York Times has an interesting new article about the suicide rate for members of the city’s police force. The whole article can be read at http://www.nytimes.com/2002/11/12/health/psychology/12SUIC.html if you are registered at the NY Times web site (registration is free).
Some excerpts:
The city’s police officers, a new study indicates, are actually no more likely to commit suicide than other New Yorkers. The same is likely to hold true for other occupational groups that are widely thought to be suicide-prone.