CodeCanyon - Mega Menu Reloaded v2.0 | 1,07 MB
This Mega Menu Reloaded comes with awesome options and is the most complete solution to build mega menus. It also works without javascript and when disabled most of the content remains accessible. Optionnal features like the contact form or the tabs can be safely removed. Getting rid of them will not affect the main functionnality of the menu.
DEMO:
http://codecanyon.net/item/mega-menu-reloaded/1593152