From the great looking theme to the awesome course format (with linear organization and pages) the University of Sussex Moodle is one of my favorites around. And you can get a look by just checking out the site with guest access.
Login as guest at https://studydirect.sussex.ac.uk/login/index.php
I really like the feature which by clicking on one of the topic titles (in the main left hand navigation) only that topic is displayed (no scroll of death) and linear controls for next/previous are displayed. Makes for super simple course navigation which, in my opinion, is much more intuitive than the “Jump to…” feature when topics are condensed in Moodle’s Topic/Week formats.
While this is an applied course format, there is a quick and simple way to force that into your own classroom using the Section Links Block in tandem with some simple HTML (a 1 row 2 column table) and the condensed view of the Topic format.
For more about the Sussex Moodle and all the cool things that Stuart Lamour and his colleagues are doing checkout http://blogs.sussex.ac.uk/elearningteam/.