During my week of study leave in January, I collected a variety of responsive and unison readings, for use in post-Christian and Unitarian Universalist worship services. More than 80 of these readings are now up on my Web site: Link.
Yet Another Unitarian Universalist, vol.1
Volume one contains entries from 2005-2010.
Dan, regarding one of the readings you include in your website, just a quick note to mention that the chalice is not lit (yet) in Transylvanian Unitarian churches (although some affiliate institutions use a chalice as a logo, not the Church itself).