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isn't it just Cmd+click ?

In Mavricks (only one I can be sure of) when you hover over spotlight results and hold Cmd, you get a (quite nice) file preview/info.

Oh hey, so it is, even better! :)

yes.

Cmd + R is universally "Reveal in Finder".

First thing I install on a Mac is Alfred. Check it out. `space` followed by name searches directories and files.

You can also use Cmd + Return.

Under Konsole/Yakuake (KDE) its: Contextmenu -> Open Link