Al Jazeera has created a very well made video covering the history of Sudan and the reason for the conflict between north and south. I’ll let you judge the content and how balanced the reporting is but overall it is a nice piece of work. I worked there back in 2002 and it looks like it has come a long way since then although the needs are still significant according to the aid agencies currently working there.
The BBC has a great interactive map while CNN has a decent infographic.