Right after I wrote this last note I also wrote Dirac regarding the $99 full version of Dirac Live. They just sent me the link to it. So, now I have the link and just purchased the full version. I find their site rather confusing. It would be helpful if they had a simple page showing different versions, benefits, prices and download links for easy consumer comparison.
I think you're right. I just need to bite the Dirac bullet, learn the full version and play with it to get the best sound available under the circumstances. In the meantime I'm also enjoying listening to the playlists on the Tannoys and the Volvo. It provides an interesting basis of comparison.
Thanks for all the help!!