Concept/Idea for Minimalistic GUI

Hello.
As I am no modder and I have no modding/proggraming skills, so I would like to present you an concept/idea, which you may (or may not) like and make it happen, if you are skilled enough.
So I have an idea of minimalistic GUI, which would be as minimalistic (it would obstruct less view) as possible, BUT it would be as convenient as the old one.

So here's a concept screenshot (it's just a photoshopped image, so don't get too enthusiastic :P )

http://oi60.tinypic.com/2z8z52a.jpg


I don't know if it's even possible to make such changes to existing GUI, but here it is.