That is exactly the way I felt the first time I had my set up hooked up. It is like Heroin though. After a while, you will get all that you can get out of your current set up and the only way to get to the euphoria that you are experiencing right now is to spend MORE money.
Enjoy the music!
What are you listening to?
Pendulum - Different
P.S. I just got my HD580's in the mail.