Dear Directors, I have had great positive responses about the Apollo circulation system. Thank you, I appreciate the responses. The basic charge is $1,300, what optional features do you recommend? I believe the enhanced for $500 is a great optional. Stephanie DanielsVanderlyn Community Center & Hartford Public Library 12 Church Street Hartford, MI 49057(269)588-5103http://www.hartfordpl.michlibrary.org/