I ordered this helmet yesterday.
http://www.revzilla.com/motorcycle/nolan-n44-tech-helmetIt's probably as close to a full coverage helmet that I will get. I've had the same Nolan open face 3/4 helmet for 12 years. It finally took an accident to make me get a new one. That old helmet protected me just fine except for my chin which was scraped up. We'll see how this one does.