Awesome work, Nick!
One thing I dislike, though, is that the background for Windows 3D elements are not the same color as the toolbars. It is visually too detracting, at least for me.
I'm still hung up on your older RADO version. It is just awesome! In fact, I just tried ReaBorn 2 with RADO theme editor colors (as per my edits of that), and everything is awesome, except the toolbar buttons are way too bright in contrast now...: