you can find awesome menu’s here … http://codecanyon.net/category/css/navigation-and-menus , if you need glass border menu like actionenvelope.com glassmenu will suit you
I am looking for templates that contain mega dropdown menus. Example menu: http://www.foodnetwork.com/ http://www.actionenvelope.com/
I do believe there is 1 or 2 templates here that make use of this menu style. Not a lot unfortunately. Perhaps a great suggestion for some of our faithful authors here. 5thSenseLabs has the right idea though, checkout Code Canyon there are some great scripts there for menus that can easily be integrated into your website.
Best of luck and if I do run across one with these menus I’ll be sure to post it for you.