WordPress Plugins — Gary's Code

Calendar Category
Un-registers the default Calendar widget, and registers a new one which supports showing only those posts in certain (or all) categories.
DiagnosisFind out about your host setup
Adds subpages to the Dashboard menu with technical details about PHP, MySQL and other server details an administrator might need.
Genesis Admin Bar PlusEasy access to relevant Genesis resources
Adds resource links related to the Genesis Framework to the admin bar.
Genesis js / no-jsMake JS conditional styling much easier
Make front-end styling easier for child themes on the Genesis Framework based on whether JavaScript is enabled or not.
Geoplugin Currency ShortcodeAutomatically convert amounts into the currency matching the viewers IP locale
Use geoplugin.net to automatically show a live conversion of a currency amount on your site.
Twivatar
Adds a shortcode that echos the current Twitter avatar for a username. Image URL is cached.
Visual SubtitleAdd a subtitle or tagline to each post type that has a title
Allows part of a post title to be styled as a subtitle. It is still within the title heading, but is wrapped in a span to be styled differently.