HoudahSpot (I haven’t yet actually seen anything explaining the name yet) does what Spotlight (in Tiger) doesn’t: presents powerful searching in an understandable interface. To use Spotlight to do the same thing, you must learn arcane strings. I’ve done it in the past and had mixed results. With HoudahSpot, I was able to put together some of the more complicated searches I’ve tried in the past in a fraction of the time and they work. Also the searches are live so you can refine (or unrefine, if you go too far) to really zero in on what you need. All in all, I’m impressed.
NOTE: If you’re seeing this on June 16, 2006 head over to MacZOT, you might be able to get a Free copy of HoudahSpot
Search easily in Tiger, Mac OS X, with HoudahSpot