The 'Wp My Admin Bar' Plugin expands on the default WordPress Admin Bar, adding 3 new quick access menus.
Looks very promising but just doesn't work. I checked the support tab and the author is not responsive.
I installed the plugin on a test site. All I got was a ton of php errors. Furthermore, those errors don't go away when you click from page to page within the wp dashboard area.
This looks like a really promising plugin and I'd like to have the functionality. Hopefully this plugin will be fixed up -- I'd like to take a shot with the next rev.