On the last day of Macworld, I caught up with the guys from TypeDNA to take a look at what I soon realized was going to be a revolutionary bit of software magic for designers of any ilk. TypeDNA is a series of plugins for Adobe CS4 applications (Photoshop, InDesign, Illustrator) which makes finding the right font a simple matter.
It has several methods for navigating font collections, starting with a search by name, which is handy on its own. The functionality expands from there, doing such things as automatically offering suggestions for similar fonts and font harmonies. The harmonies feature is especially interesting, and the suggestions it offered while they were demoing it were very good. You can pick a font from the suggestions and search for similar fonts to find exactly the right typeface for your project. TypeDNA always offers a variety of suggestions, and recognizes that font choice is entirely subjective ... you make all the decisions, it just helps you navigate a large font collection quickly and intuitively.
I'll be doing a more in-depth review as soon as the demo version comes out (soon). The full version will be available in March, and will run $59US per plugin, or $89US for a full set (3 plugins) and two licenses so you can use them on two separate machines.