Comment on Spotlaser

Spotlight already provides these options. For simple search, use hotkeys Command-Space. To expand the simple search results and see more options, click Show All in Spotlight results.

To go directly to search with options, use hotkeys Option-Command-Space. This opens a search window in Finder. To see more options, click the + at right of search window toolbar.

To set different hotkeys, use Spotlight prefs in System Preferences.