I was just at the book store and found "The Making of Star Wars" book. Came out this year and I didnt even know about it XD Anyway, there is a really good frontal refference picture in there you might want to check out. Sorry, didnt buy the book =/
http://www.amazon.com/Making-Star-Wars-Def...l/dp/0345494768
Also, some REALLY good back refference shots on page 215 for the original stormtroopers. I no longer feel bad about cutting up my leggings. Theirs look horrible! Sorry I dont have pictures, maybe someone else can post em.