External Links on CF

So upon reading a discussion an idea sparked which might be helpful if implemented into the style of this site. Since the links are automatically converted by VB and whatnot, there is no surefire way to make this work, but what if there was some CSS that applied to external links only (example below) and put a little icon to show that it will open in a new window/tab, would that be helpful? I think it might be nice, and pretty easy to do.

http://www.askthecssguy.com/2006/12/showing_hyperlink_cues_with_cs_1.html

Are members having trouble differentiating between internal and external links on CF though? Most links that appear in members' posts are external right now anyway.

I'm personally not, but it might be a little cute to know whether you're clicking on an image (like a screen of HTML & CSS problem) or an actual live link. Or maybe Jeremy just likes small things.

It could just be a nice thing...I always look at the URL in the statusbar before I go so I know what I'm about to get myself into...