From a free give-away pile of a departing faculty member:
1. Economics: Between Predictive Science and Moral Philosophy, a collection of articles, chapters, and essays by James Buchanan. I read the chapter on the political biases of Keynesianism (not from Democracy in Deficit, but making the same argument) and wasn't very impressed by it at all. But I already knew that Buchanan's take on Keynes was of (atypically) low quality. Other selections in the volume look much more promising.
2. Institutions, Institutional Change, and Economic Performance, by Douglass North. I haven't gotten a chance to leaf through this yet, but it's a classic by a great econoimst.