What's the best way to get a list of post types in a widget?

Hi

I’m trying to make navigating my site easier and specifically give the directory side of it more exposure on the homepage, without actually having the homepage as the main directory page.

What’s the best way of displaying a list of the custom post types in a widget on the right hand side of the site? I know there’s the gd search widget, but I’d like something a bit different. Either a way to list them all in one widget or a dropdown of the post types in a widget.

Also open to other suggestions of how to increase awareness of the directory on the homepage.

Thanks