Here’s another WordPress theme finder, that’s not as visual as WP Candy’s but nevertheless may be useful for some. It’s called QualiThemes. We like it as it includes both free and commercial themes and you can rate them. Our nitpicks: the original theme developer doesn’t get listed on the page and the drop down menus to filter the themes could use some visual work and spacing.
We also noticed there’s a huge list of awesome WPshortcodes at WordPress Answers by Stack Exchange including: delay RSS posts, add excerpts to pages, customize the order of the admin menu navigation, and profile the database performance.