SnagIt screen capture and image editing
Over the past 15 years, I have used a lot of screen capture and imaging editing tools. While I don't need something at powerful as Photoshop, I need a tool that is flexible, has a good feature set, and provides good image quality with a variety of images. (For example, capturing screens for a book for publication requires uncompressed TIFF files.)
For the past few years, I have been using SnagIt from TechSmith and am very happy with it.