Using CaptureDone you can easily capture any part of the screen, then annotate the screen shot by adding text, arrows and define spotlight and magnify section. Then you can save the screen capture, copy it to clipboard, send to ftp or email or send it to another program like Microsoft Word and Microsoft Powerpoint. Here are list of CaptureDone features at a glance:

Screen Capture

Region Screen Capture	Capture Rectangle, Ellipse, Polygon, Freehand
Window and Object Screen Capture	Capture any window or objects like buttons, toolbars, sidebars, etc.
Scrolling Window Screen Capture	Capture all content of a webpage or window that is long and could not fit on the screen
Menu Screen Capture	Capture a menu and it's items

Photo Editing

Add Efects	General Effect: Emboss, Blur, Guassian Blur, Sharpen, Edge, High Pass, Low pass Image Effect: Bump Mapping, Lens Effect, Wave Effect, Perspective, Shear, Edge Effect, Shadow Annotation: Spotlight, Magnify
Change Color Settings	Brightness / Contrast, Hue / Saturation, Color Balance, Change Color Depth and convert image to Grayscale, Black and white
Rotate, Resize and Crop

Annotate

Add Text	Add Texdt with shadow, Transparency and
Add Spotlight	Add Spotlight
Add Arrow, Shapes	Add arrow and shapes to this

Integration and Automation

Send screen captures to FTP	Add Texdt with shadow, Transparency and
Mail Screen Captures	Add Spotlight
Add Arrow, Shapes	Add arrow and shapes to this