A Starting Point

If you are considering living in any of the countries of Africa, your first stop should be Transitions Abroad's Living in Africa: The Essential Expatriate Resources page.

From the website:

Africa is a huge and diverse continent with a wealth of natural resources and great cultural diversity. But after centuries of economic exploitation from colonial powers, most African countries still struggle to achieve political, economic and social stability. Rebel groups operate in many countries, and ethnic and religious conflict is widespread. This makes African countries a difficult destination for expatriates, but there are notable exceptions.

Thus, it becomes your job to go to that page and discover those "notable exceptions."