How about Lightroom? and it has clone/healing brush tools and it will process jpgs. It has a great range tools for exposure (both shaddow & highlight), contrast curves, selective colour balance, selective hue & saturation, noise reduction, crop & rotation. It will also create slide shows, web galleries, and you can print from it as well as image library database facilities. In fact it will do just about everything except pixel level editing.
LOL - Duncan you must have been typing your post at the same time as me
