Thanks for the link Randy. I did a search on diyaudio but I searched for Signal Wizard and of course the post had signalwizard. doh!
I don't know if this it any better than other available solutions such as the Behrniger or DBX stuff but thought it looked interesting. Certainly a pretty good chunk of cash to expend just to experiment with it. I'm looking forward to the next issue of audioXpress to see the results of the authors work.