I picked up SnagIt some time ago and I didn’t initially use it very much because it felt a bit overwhelming next to the built-in simple Snipping Tool but I recently forced myself to sit down with it and sort it out and I am glad I did because it is absolutely awesome.
I totally recommend it if you need to get screen still or video captures.
joe
FastStone Capture is a great alternative if you’re after something super light weight and standalone : http://www.faststone.org/FSCaptureDetail.htm
I second that opinion. Snagit rocks and I use it everyday in my I. T. work.
Their video editing tool is also quite nice. Very approachable for “mere mortals.”