If the previous menu still does not have enough room for all your items then this menu takes it even further and allows the droplists to also have flyouts up to two levels deep (even more can be added if required).
The droplists can have one, two, three or four columns of links and each item in the lists can have a flyout sub menu. There is also the option to have sub headings to each list section.
Because I could not think up a suitable menu structure I have used 'Lorem ipsum' generated text. I think that this menu should be able to handle even the largest of structures with ease.
To keep it simple I have used the minimum of code and style but for browsers that support CSS3 I have added curved corners and drop shadows to give a more professional look.