For the sake of completeness, in case anyone needs a reference in the future, I found that the following book is an absolutely must have for any relativistic atomic structure calculations, and also provides the most thorough coverage of Dirac-Hartree-Fock theory.

Relativistic Quantum Theory of Atoms and Molecules: Theory and Computation, by I.P. Grant

http://www.amazon.com/Relativistic-Q...9621858&sr=8-1