EnhSim (http://enhsim.wikidot.org) is a popular and highly flexible combat simulator for the Shaman class in Blizzard's MMORPG World of Warcraft (http://www.worldofwarcraft.com). It is distributed with a Windows-based GUI that allows for easy creation of the configuration files that the command-line based EnhSim uses; this project's goal is to create a full-featured GUI for users of Apple's Mac OS X, integrating the EnhSim engine into a stand-alone application capable of giving Mac-using Shaman players the same edge their Windows-using bretheren have had.