Looking for User Interface design

For some time I've been wondering about the kind of user interface I want to achieve.
The original interface is unsatifactory so I definitely need a new one.
The best could come up with would be context sensitive dropdown menues depending on what is selected. Challenging but I think very efficient. Could be just a touch to High-Tech for the game feeling.

I'd very much apreciate your input on how you'd want the game controlled. Just open a new thread in open discussion with your proposal so we can discuss it.