BuddyPress.org

Actually I think it’s a pretty good starting point. It may use up a lot of space, but it provides a perfect user experience and shows what the optionsbar and the userbar do.

I don’t think it’s Andy’s task to come up with the perfect design.

So, if I don’t get you wrong there are plenty of possibilities/options to change that or get rid of the navigation with a little css and html knowledge.

Edit: I was slower than you DJPaul…