Quicksilver and Spotlight

I have been using Blacktree's Quicksilver since I first heard of it many months ago. At its most basic, Quicksilver is an application launcher of sorts for Mac OS X. Upon its initial launch it creates a catalog of your drive. You can then launch applications or manipulate files with just a couple of keystrokes. For instance, if I want to launch the Safari web browser, I only need to type "S" and hit the Return key. Quicksilver has "learned" that I want Safari launched when I call it into action and then type "S." Very convenient. Likewise, I open The Unofficial Apple Weblog by typing "Command-space" to activate Quicksilver, "UA" to select the URL and the Return key to open it in a browser. Quicksilver does much more than this, but this is primarily how I used it.

When I installed Tiger, however, I stopped using Quicksilver, having been seduced by Spotlight. After only a few weeks, however, I've begun using Quicksilver again. While a comparison of Spotlight and Quicksilver is really unfair, I can't help but do so. While Spotlight searches the contents of my drive in a very unique and thorough way, I
believe I can get an application launched more quickly with Quicksilver. Even though I've set Spotlight up to display applications first, I still have to type "Photoshop" to get to that app, where as with Quicksilver I could type "ps" and then "Return" and have the application launching in the time it would take me to mouse down to it in the Spotlight results window.

What's more is that Quicksilver allows me to do more with my search results.  Having found what I'm looking for, I can then move it, compress it, email it, make a duplicate. . on and on. Understand that I'm not knocking Spotlight. I understand what fantastic technology it is. I'm just coming to the realization that there's room for both Spotlight and Quicksilver on my Mac. Have you used Quicksilver, and if so, what's your take?