Morrowind/Oblivion both have an entire race of black people who aren't your stereotypical 'gangsta' black men. Nor do they all have fro's or corn rows.
They aren't all ignornat, violent, angry blackmen.
Probably the only thing that could be said is, there culture is probably one that is a 'medeval white culture' with black skin.
If you can't make yourself in Oblivion, you just aren't trying hard enough...
Fallout 3? Yea, that ones a lil harder, mostly cause there character creation sucks compared to oblivions.