delicious2safari

This utility allows you to import your del.icio.us bookmarks into Safari.
It imports your bookmarks as a flat list, or you can let delicious2safari organize them into folders according to their del.icio.us tags.

It also lets you choose between downloading to a folder in your Bookmarks Bar, your Bookmarks Menu, or your Safari bookmarks.
Once your del.icio.us bookmarks are in Safari, you can also use them with third party applications, such as Quicksilver!