Best Examples of Cross Browser Nested list dropdown navigation

[cuce]

Hi. Looking for a nice example of a css formatted
nested list dropdown menu.

I want to be able to take
<div id="nav">
<ul>
<li>
<a href="#">example</a>
<ul>
<li><a href="#">secondary item</a></li>
<li><a href="#">secondary item</a></li>
</ul>
</li>
</ul>
</div>
and make it into a dropdown with little or no extra html.

Where are some good examples/tutorials for this? I have had no luck in google.

[SilverLining]

Suckerfish has some great examples