Screen Steps: ScreenSteps combines everything you need, screen capture, image editing and documentation authoring, allowing you to create better documentation in less time (from $39.95).
Camtasia: As they say, “More than a simple screen recorder, Camtasia gives you the tools you need to truly customize and edit your videos. Record on-screen activity, add imported media, create interactive content, and share high-quality, HD videos that your viewers can watch anytime, on nearly any device.” ($299.95)
CamStudio: CamStudio is able to record all screen and audio activity on your computer and create industry-standard AVI video files and using its built-in SWF Producer can turn those AVIs into lean, mean, bandwidth-friendly Streaming Flash videos (SWFs).
Jing: Allows you to create images and videos of what you see on your computer screen, then share them instantly!