Jaguar’s Font Panel
Many people don’t realize that you can slide the preview panel up and down. There’s a hot zone near the bottom of the preview.
Perhaps that’s because there’s no affordance. The font panel would be really cool if you could type letters to navigate MenuType-style. I can’t find a link for MenuType, but I think that’s what it was called. It was a control panel that let you type to scroll through the Font menu, and it also provided WYSIWYG previews in varying sizes.