Posted By Robert K Lewis Mal I presume that you are talking in terms of pre-assembled units and components here. It depends on your target audience but many of the companies undertaking these activities can provide presentations. Is this an internal provision or are you preparing some form of conference day? Modesty may also forbid responders from offering their own services. You need to have one able to deal with both H&S and environmental & quality benefits to get a balanced picture. There are pluses and minuses with such systems. Bob