Thanks to all who responded. Since the PICMASTER seems to have universal approval (with the possible exception of the price ;-), I will probably go with it. My compliments to this group for the rapid and helpful posts. ==================================================== Jamie W. Burnside M.I.T. Lincoln Laboratory jburnside@ll.mit.edu 244 Wood Street, Rm. D-353 Phone: 617-981-4511 Lexington, MA 02173 USA ====================================================