The latest edition of the Harvard Business Review is dedicated to decision making, and it's definitely an issue worth buying. It's got articles from some of my favorite business writers, including Ram Charan and Tom Davenport.
The article I like best so far is a reprint of an earlier article by John Hammond, Howard Raiffa and Ralph Keeney called The Hidden Traps of Decision Making. These three guys wrote one of my two most recommended books on decision making, Smart Choices, and this article is kinda like an excerpt of the book. Good stuff.