Alternative Navigation Bar

With the standard navigation gadget you cannot make links to site pages open in a new window or select different fonts for your links. You can however use a text box in the sidebar and put links there and have those options. For an example see the Other Links text box in the sidebar. 
 
To create one, edit the sidebar and click Add sidebar item and select Text Box.
 
You can also have a horizontal navigation bar. Click here for information.