SEO friendly sub navs made easy - Infinite Menus

I found a very nice tool today (it's free by the way) that gives you a GUI interface so you can make subnavs.

So for example, a lot of sites have a main nav element called Products. This tool will help you create a subnav so that when you put your mouse over Products, another menu opens up giving you more options.

http://www.opencube.com/imenus.asp

The tool is free and does not use Flash or Javascript so everything is SEO friendly.