Hi Bob,
Harrison is here in Nashville, and we make console (the Trion) which has an ethernet-based ProTools controller like the Euphonix stuff. Ours is much better actually (but I may be biased, being the developer and all). Furthermore, our system provides a full mixing and monitoring system at a price competitive with their controller-only system.
Please contact me if you'd like to see a demo. We've got 2 Trions in production, about to be shipped, and one is already connected to a PT system for testing HUI.
-Ben Loftis
http://www.harrisonconsoles.com
615-641-7200