Summary of detector and beam parameters working group from Lyon

This report is an overview of the discussions and talks that occurred during the detectors and beams working group of the NuFact99 workshop in Lyon, France. A wish list of muon beam parameters is given, as well as a survey of currently studied oscillation detector technologies. Finally, a short description of the non-oscillation physics that would be accessible is included to show how the diversity of neutrino physics a muon storage ring could address. Workshop talk slides can be found in http://muonstoragerings.cern.ch/welcome.html/