Grabz is a fun and easy-to-use screen capture app for the Mac. Grabz is accessible from the Finder menu-bar, making it fast and easy to grab a screen shot no matter what application you're using. Grabz takes screen shots of the entire screen, a window or a specified selection, and then let's you quickly locate the screen shot in the Finder, view it in the Preview app or even attach it to an email document.
Launch Grabz and locate the blue camera icon in the upper right hand of the Finder menu-bar.
To take a screen shot, select "Grab Entire Screen", "Grab A Window" or "Grab A Selection". (Screen grabs are stored in your Pictures folder.)
After the screen shot has been taken, select "Reveal Last Grab In Finder" or "Attach Last Grab To Email" or "Show Last Grab in Preview" as is necessary.
Number is screenshots limited.