Hello,
I found a couple of people via the listserv archives, but if you are using Library Trac for student sign ins and would be willing to talk with us about how it is working out, please let me know off list at sbriggs@milforded.org.
Thank you and Happy New Year! 
--
Sarah Briggs
Library/Media Specialist
Google Educator
Jonathan Law High School
Milford, CT
203-783-3574