Hello, this issue could be considered an extension of issue2618 and
maybe I should have continued there but.. continuing,

I'm proposing the inclusion of a ttk module (should be renamed to Ttk
for python 2.x) that would fit inside lib-tk or the new tkinter package.
This is a wrapper for the new themed widget set included with Tk 8.5,
which will also work if you have the tile package installed and an older
Tk version (I tested with Tk 8.4 only).

The code and docs are at: 
http://svn.python.org/view/sandbox/trunk/ttk-gsoc/