Hi,
I don't have an easy solution for this, but I thought I'd share some experiences. Some months ago I put in some time trying to implement Soh Tanaka's famous gorgeous mega dropdown.
http://www.sohtanaka.com/web-design/mega-drop-downs-w-css-jquery/
But I was thwarted by the need to have DIV's within list items on only some levels. I couldn't find a way to get the templates to work. Try it, it's nuts. Someone may have figured it out, though.
My next thought was to try doing it with a megamenu that is nothing but list items. This looked promising.
http://www.designchemical.com/lab/jquery-mega-drop-down-menu-plugin/getting-started/
I got further on that, and was pleased. But that had a significant issue, too: if you move around and keep clicking too many times (or hovering, depending on which one you're doing), the javascript "gives out" and then the menu stops working. Some kind of memory leak, maybe. But I couldn't sort it, and I don't think the makers of that have published anything new for it in some time.
I did some inconclusive experimenting with droplines, too. With any mega menu or dropline, the hover behavior becomes pretty important, else you end up missing what you're trying to click on, menu items might vanish too quick, on and on. So significant facility with JQuery may be important.
I didn't try paid solutions, and some of those may work better. Ideally, I suppose if you could find some killer JQuery script that will handle a more-or-less normal Wayfinder menu, problem could be solved. Superfish, or what-have-you. Cheaping out certainly did not work for me.
I remember thinking that someone could play with GetResources to pump out a bunch of links, but even that might run into templating complexity.
Good luck,
Cheers, Dave
