I’ve just finished writing the first version of OTtablx, a sorely-needed LaTeX package that draws nicer OT tableau than is possible with the standard tabular environment.
The package is in very early beta, so it is expected to be buggy and not completely functional. However, it already is fairly robust with a few nice features, and it should be perfectly fine for limited, uncomplicated use.
Feel free to discuss the package here, or to just send me comments privately by email. The full URL for the OTtablx homepage is http://wso.williams.edu/~nsanders/OTtablx, which has links both to the package itself and to useful documentation.