Alright Fifty, sorry this took so long. These were the three best books on Eisenhower I read last year. All of the others were chock-full of military minutiae, which these are not. Political minutiae, you might have to deal with.
Ambrose, Stephen and Brinkley, Douglas. (1997) "Chapters 8 and 9" Rise to Globalism, New York: Simon and Schuster
Statler, Kathryn. (2006) The Eisenhower Administration, the Third World, and the Globalization of the Cold War Lanham: Rowan and Littlefeld
Kingseed, Cole. (1995) Eisenhower and the Suez Crisis Baton Rouge: Louisiana State University Press
Rise to Globalism is a basic university textbook, but good nonetheless. Unfortunately, it's not terribly detailed. Statler and Cole both focus on specific periods, but are good reads, especially Cole. I thought Cole's book was one of the best books about the Suez Crisis I've ever read, and I've read dozens.
Unfortunately, all the books dealing with Eisenhower's career as a whole, rather than simply his time as President, are teeming with exactly what you want to avoid, or I could recommend a biography or two. The best is probably:
Larson, Arthur. (1969) Eisenhower: The President Nobody Knew London: Leslie Frewin
You might want to read that, and simply skip the chapters dealing with the war and Eisenhower's time as head of the army in Europe.