Recommendations for cross-platform GUI Bindings ?

[Courageous]

>	I'm writing an Open Source software application that allows children to
>create their own video games, and would like to hear anyone's
>recommendations for GUI bindings. The key things I'm looking for are:

For low level graphics, pygame is the best of the lot. It's on
top of SDL.

For windowing, Tk, WxWindows, and QT are the king of the crop,
although I'm not sure how well the QT bindings are being maintained.

C//