Although I don't think Microsoft makes it indisputably clear, this link:
http://msdn.microsoft.com/en-us/library/x2dbyw72%28VS.71%29.aspx?ppud=4
Says that Properties should be Pascal Case and Protected (non-public?) instance fields should be Camel Case.
So I think in your example, CyborgName should be Pascal, as it is, but the backing field should be fcName or Camel Case.
Admittedly, they DON'T specifically say what to do with PRIVATE instance fields so that muddies the waters. But if the backing fields are Pascal and properties are Pascal, then it gets harder to read the code and tell which is which.
Of course, personally, I think having case sensitivity in a language is dumb and the same thing goes for these kinds of "case conventions".
However, I believe that camel case for the (non-public) fields is the recommendation.
FWIW.
