I finally fired up QuickSilver this evening to test it, since I planned to use several apps not on my Dock. My initial reaction is that it is a useful app for its basic launching feature, and suits how I "think" when computing. Ctrl-Space, "cybe", Enter, and CyberDuck is launched. I guess I think more word-oriented than visual-matching: typing names is easier than recognizing the icon. If you don't work this way, then QS may not be for you. Apps like Cyberduck that I'm not going to clutter my Dock with -- infrequent use -- are slow for me to launch. I've got an Applications folder in my Dock and TigerLaunch in my menu bar. QuickSilver is faster for me in absolute terms and just fits how I like to work better. I'm more comfortable with this keyboard-drive launch method than track-padding over to TigerLaunch and searching for Cyberduck's entry. Spotlight offers a very close method: Cmd-Space, cyber, and the list is populating. CyberDuck is the first option. But Spotlight, as much as I like it, is slower than QS. And it requires that extra keystroke (down-arrow) to select the app. This is a gut reaction, from five minutes of use, but it immediately felt right. Longer term use will hopefully affirm this impression. But while I know QS is more than just a launcher, I've not dug into it and the interface doesn't immediately reveal its additional power. So I'm hoping QS users can explain how they use it. And for Ron: Activity Monitor says QS takes 35 MB real memory with 0.0% CPU while idling. And I found this by Ctrl-Space, application monit, (no that's not it), monit, (that's it, Activity Monitor), Enter. And it hopped up to about 15% CPU when actively being in use, on my MBP 2.4 GHz.