My name is Bob Techentin I work for a research group at the Mayo Clinic in Rochester Minnesota. We build fast (10,000 MHz+) digital electronics. My work involves developing electromagnetic modeling simulators to help us design those systems. Lately I've been integrating a Tcl interpreter into the simulator using SWIG [http://www.swig.org]. Our home page is http://www.mayo.edu/sppdg/sppdg_home_page.html . My work email address (which I read just about every business day) is mailto:techentin.robert@mayo.edu and my home address is mailto:techenti@infonet.isl.net .