I will discuss the current state of an effort to simulate binary black
hole systems using a code based on a generalization of harmonic
coordinates. Topics covered will include: the formulation of the
equations, the structure of the corresponding numerical code,
compactifying to spatial infinity and the implications for stability
and waveform extraction, extending the evolution time of black hole
spacetimes via constraint damping terms, and specifying
slicing/coordinate conditions within the generalized harmonic
framework. Early results will be presented.