Jing sounds like it would meet your needs. There's a free version 
available for Windows and Mac.



Simone Q. Vuong wrote:
> Does anyone have recommendations for a screen capture tool that:
> - is free or, at the very least, cheap (SnagIt, at ~ $50 each, is too 
> much),
> - can also capture regions of a screen,
> - allows some image editing, like the ability circle an object or draw 
> an arrow to point to something specific in the image, and
> - is very simple to use because it would be used by non-technical 
> staff.  GIMP is too complicated for non-technical staff.
> Thank you.
> Simone