IMHO, "Macroeconomics" is a diseased discipline, for a number of reasons. If you want to gain a rigorous yet reasonably intuitive understanding of the economic phenomena which are usually addressed by "macro", you could do worse than looking at monetary disequilibrium theory, as addressed by such authors as Robert Clower and Leland Yeager, or (on the more Austrian side) George Selgin and Lawrence H. White. Economist Nicholas Rowe, writing on the WCI blog, is a good popularizer of this school of thought.