I develop small projects in Excel97 for forward compatibility (project group
A) and use Excel 2003 for some projects with a smaller target audience
(project group B).

I've heard that Vista along with the new office suite do some things to
custom toolbars, but I don't have access to a machine with Vista and the
office beta for testing.

Does anyone know of a website that shows screenshots of how existing toolbar
code will be interpreted in the next version of Excel? Or any other areas
that will be affected that Excel programmers (including us amateurs) should
be aware of?

I'm already worried about what will happen when folks start upgrading, but I
want to know /how/ worried I should be :-)

Thanks,
Keith