Most used shortcuts.

FunctionShortcut
BROWSER
Go to Address Bar/Search⌘-L
FILES
Move a file

⌘-C to copy as normal.

⌘-Option-V to paste and move.

Delete a file⌘-Delete
Empty Trash⌘-Option-Delete
Move into FolderCmd-Down Arrow
Move out of FolderCmd-Up Arrow
CAPTURE
Capture a specific window.
  • Command (⌘)-Shift-4
  • Spacebar
  • Cursor changes to camera
  • Hover and click on Window
Capture some of your screen.Command (⌘)-Shift-4


Use iMac as Monitor⌘-F2

I always also configure in keyboard preferences to,

right CTRL = Mission Control

Disable,

Mission Control - Move left a space = Use for BetterSnapTool
Mission Control - Move right a space = Use for BetterSnapTool 

References

List looks very complete (still to fully review) - http://www.danrodney.com/mac/