I have been using QPict for a week and got to like it. I was ready to buy it, but I ran across a major problem with the "Date Created".

QPict has a clever option to read the EXIF creation date from the image -- that is good. But whenever you add a keyword or perform any other action on the image, QPict changes the "Date Created" in the OS X Finder to the current date! This makes it impossible to keep track of images by when they were created.