drgnz23, you are reading 517.13(A) correctly. The metallic raceway or cable sheath shall itself be a ground path for fault current and there shall also be a wire conductor ground path for fault current.
HCF or HCFC meets this requirement.
Check out this link. http://www.afcweb.com/table2_.html
Now, depending on what code cycle you are dealing with, you may or may not be allowed to use this wiring method for the "Emergency System" wiring.
[This message has been edited by Roger (edited 08-26-2005).]