Hmmm now that is a very well thought out concept. Power and help buttons at the corners which is very good. A couple of comments though.
1. Maybe it would be wiser to place the eject button next to the help button. That way the top bar mirrors the standard "vcr" button layout. Ppl are more comfortable if it resembles something they are used to.
2. For beginners you will need some way of explaining what each icons purpose is. Eg// changing the status bar text to give a description when hovering, tooltips, or having a similar icon in the menus.
3. Wrt the bottom bar it would probably be better to list the items in the same order as they appear in the config menu.
4. IMHO the one area that is still weak from the interface point of view is the plugin selection dialog . That is so busy it's enough to scare anyone