Some constructive, feedback and first impressions… at work (as a Drupal web developer) so have not gone through whole site but quickly.

1) Everything is to big, to much padding around buttons, espcialy nav and nav drop, it is trying to be too "Web.20" which is now old, and as such it looks to "junky" for a "information" site it really should be more compact, but with lots of white space. (easily fixed by allowing user to choose/change skins/css.)

2) NOT responsive, the design really should be responsive so that it can change based on the media type. (try omega theme)

Positives: Great choice using DRUPAL!! … Thumbs up… try 

… have to run more later