Free ScreenCapture Utility

If you write instructions and/or documentation, then I guarantee you will like this Great little Screen Capture Utility, especially if you are on a budget.

As far as I can tell, it doesn't stay memory resident, and when you hit the capture hot key (Ctrl + Shift + A by default), you get this handy little zoom window, so that you can get a nice clean capture that you will not have to crop later. Then you just copy it, and paste it into your documentation program and you are good to go.

Of course, the price is right, it is free! Go ahead, give it a download.