Dave,
Really nice stuff you've done with your Moodle site. You've taken html code and buttons to a new level. I was poking around on your site and it looks like you got some amazing stuff going on.
I love how you used the Fordson theme's custom images for courses. The images you used are exactly what I was thinking when implementing this. Certain courses might use a certain color or tint such as red = science, green= math, orange = language arts, etc. The images can be used to visually group types of courses. You use some custom made images that are really nice on the professional learning pages.
The start of the "teacher marketplace" is also very interesting. A repository for common modules and activities. All great stuff.
You've done one heck of a job! I didn't want to post a link to your site, but if you are so inclined please do so. Visually as well as content you have a great site and is an inspiration for what can be done with Moodle for K-12.
-Chris