I am a photgrapher by trade. And Also do alot of hiking on my time. New to geocaching and absolutely love it. Anyway I bought one of these recently and it is the best purchase I have ever made for photography. It has tons of room. And a laptop compartment. You will be very satistfied with this pack.
http://cgi.ebay.com/Lowepro-Computrekker-P...1QQcmdZViewItem