I've just uploaded datagenerator 0.3 to the downloads page. Its a big step forward. Apart from being multithreaded and generally much faster it includes a wizard that allows you to reverse engineer a schema... currently it only reverse engineers the tables and primary keys but I'll include more functionality over time. I've used it to build vey large schemas for the order entry benchmark much faster than I was perviously able to. In the next couple of days I'll post a script and instruction on how to do this.. In the mean time enjoy