I can do a search myself on who makes them...what I need to know lies more along the lines of who has used a particular device with high reliability and success? Failure rate must be very low. Presently I am not sure of what size we need...just now looking for a manufacturer. Anyone have some leads on this? _________________________________________________________________ Send and receive Hotmail on your mobile device: http://mobile.msn.com -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body