Plugin Request: "If Logged In" Widget

I'd love to be able to put some widgets in my sidebars that only show if a member is logged in to buddypress.

Ideally, they would be multiple-use text widgets that wouldn't appear or take up any space if the user isn't logged in.

I'd like to put a link to a "Do More With..." page that details all of my community functions and to a mailing list sign up for new announcements, tips, etc. Obviously, there would be limitless uses for something like this.