For interns or students needing screen captures, I have just used an inexpensive but useful product called SnapIt. With this product you can apture anything you see on your PC screen.It is convenient tool for graphic designers, documentation writers, bloggers who capture and crop images for their posts, for tech writers who need to describe menus and interfaces of applications, web designers and those who work with graphics every day. It captures and auto saves images with one click.
* Supports hotkeys, auto-saving, clipboard
* Automatically copies screenshots to the clipboard
* Tracks capture history, auto-saves captured images
* Saves files in BMP, GIF, JPEG, PNG and TIFF formats
* Auto-names captured images
Here's the link to the product:
SnapIt
