ScreenTaker

ScreenTaker is specially designed for getting large number of captures with ease. When started, ScreenTaker responds to previously defined key combinations (hot-keys) and saves capture to clipboard, predefined directory or presents you with "Save As.." dialog, to allow you to decide where you want to save image.

Also, since version 4.00 you can use capture wizard to simplify capturing process for new users. Version 4.10 adds image editing capabilities to image preview window.
It can be configured to take snapshot of:
- entire screen
- top window
- client area of top window (top window without frame and titlebar)
- An rectangle with predefined size
- An arbitrary rectangle
Screenshot can be saved as: Bitmap, JPEG, PCX, TGA or TIFF image. You
can configure color depth of saved image or compression quality (for JPEG).