OSSIE  Assuming most times you'll already be in a Finder window, add the app to the toolbar. With a Finder window open, click on the app wherever you've saved it and drag it to the Finder window's toolbar, waiting a second or two for it "to take." Then whenever you need to invoke it and you are in a Finder window merely click the icon.  
(Version 0.3)

JCMDESIGN  Says "Platform: Intel" however it runs fine on my PPC G5, and is so much faster than Spotlight.  
(Version 0.1)

BRUSETH  Very nice app. Very fast too. The original version crashed when I tried to use it. I emailed the author the crash log, and about an hour later he emailed me back with a new version that works great. Thanks for the fine app. Keep up the good work.  
(Version 0.2)

KNOWHOWE  Great little piece of efficient nostalia that does what it says really well and takes up hardly any space. I'll be using this a lot. Thanks!  
(Version 0.1)

TINGTING  Totally cool. I dislike Leopard Spotlight immensely because I can't find the files I want to when deleting an app or finding a pref file. This finally brings back ease to searching on a Mac. I do wish it remembered my preferred window size whenever it opened a window though. I have to resize every time.  
(Version 0.3)

HODAGACZ  So fast it makes Spotlight look like a gimpy snail (not difficult I know). A really wonderful and FREE piece of kit.  
(Version 0.3)

ARVIDTP  This program just helped me fix a months old problem with iDVD by locating for me every file with iDVD in the name - so I found iDVD's cache files in /Library/Caches, trashed them, and now buttons in iDVD work correctly! This utility now has a place in my finder window toolbar right next to the spotlight search field.  
(Version 0.3)

ARVIDTP  Excellent little app! Great for finding files in /Library or ~/Library.  
(Version 0.2)

RORO01  An option to include/exclude package contents is missing. Many of us are not interested in looking for files inside these packages.  
(Version 0.3)

THEBRIX2008  This is better than Spotlight, which is not hard, and even Path Finder's search, which is surprising. I thought the second was unbeatable, but this one finds everything - often several times more items. And it is more usable - the breadcrumb list at the bottom is a nice touch.

It would be useful if a double-click on a folder could be configured to either open in Finder or open in Path Finder (or any other Finder replacement?); that would integrate everything nicely.  
(Version 0.3)