We recently launched Reliable Septic Services website:
http://texasreliableseptic.com/
This site was built using a hybrid of 1% grid system and HTML5 boilerplate. It's pretty much a basic site with solid on-page SEO.
Through these forums, we were able to utilize getResources to make a random testimonial appear on certain pages which was a breeze to configure.
The site is responsive and as per our client's request, "No pictures of guys putting tubes down a hole. No photos of tanks in a ground."
Now that my team is getting more versed in MODX, we should be posting more websites for "show and tell"