Good points. I use MS guidelines as a starting point, since most users are familiar with them.

>Just to avoid committing too much with Microsoft sometimes forced metaphors, you may check Jakob's Nielsen site from time to time:
>http://www.useit.com/
>
>When thinking about interaction design, it is always good to see more than one source, and then do your own (even if tiny) exposure testing with your real users.
>
>Best luck,