Back in December, before Safari 1.2 was released, David Hyatt wrote a post about outline highlights in Safari. Now that we have Safari 1.2, I have noticed that it no longer gives you a dotted outline (or anything for that matter) when you click on a link. So what I have found is that if you take the outline code that David Hyatt posted in December and make Safari use a custom Cascading Style Sheet, then all links will have an IE-like glowing outline when you click on links.
To do this, Open any text editor that is able to save a .css file (basically a pure text file), and paste the below code.
:link:active, :visited:active { outline: 3px auto; color: lightblue; }
Save the file somewhere, and name it something ending in .css. Then go into your Safari Preferences and click on the Advanced icon. From there, you can set a custom CSS file for Safari to use; point it to the file you just created. Of course you can take out the color: lightblue;, and Safari will use the same color of the link on each site. Or you can even change it to the color of your choice. To see the effects, you'll have to open a new web page; it won't change any already loaded pages.
Mac OS X Hints
http://hints.macworld.com/article.php?story=20040209233422770