My objective is after you read my article, you are more familiar with QuickSilver and you can be more productive.
I believe you've already known about bringing items to QuickSilver dialog box, using . You just need to highlight all the items you want to perform action, open QuickSilver and then shout them out. For detail information, I humbly offer you my other article about QuickSilver - Useful Plug-ins.
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And what I want to say is, you can skip the calling QuickSilver part. In short, look at this chart

Conclusion
The same way, the same effects but with shorter step. I hope this article will help you save even more of your time.