Want to quickly see how big a hard drive is and how much space is available? Select the drive on your desktop or in a Finder window. Press Command+I to bring up the Info window. You’ll see the drive’s format, capacity, available space and used space. If it is your main drive, you will also see the version of Mac OS X installed.
Related: The Inspector, Using Spotlight in OSX Tiger, Where Did That File Come From?, Setting Email Reminders in iCal, Toggle Finder Toolbars.
