The National Defense University's Africa Center for Strategic Studies and Center for Complex Operations hosted a seminar in Washington on Dec. 16, 2010 that focused on the implications of an independent Southern Sudan after the Jan. 9, 2011 referendum. The most useful sections of this seminar summary dealt with Sudan’s outstanding debt, the nature of U.S. engagement with Sudan after the referendum and the role of the international community.
You can read the entire summary here (PDF).