Well, I'm opposed to the notion of "data core" being capitalised. To me, the appeal of the words is that you can use uncapitalised words. After looking at it more, I basically do agree that the TARDIS itself is a little too busy. Here's another design, this time representing the TARDIS more symbolically than not.
And before you guys pounce on me, the word "TARDIS" is in fact in upper case. That's just how this font represents uppercase.
