As a parent, I shoot a lot of high school and college swim meets. I then post the photos to a web site for all parents to enjoy. Natatoriums are not well lit, so I am always shooting at ISO 1600 or 3200, f/2.8, custom white balance on a Canon 30D with a 70-200 zoom. I take a lot of shots using the cameras high speed drive mode 5 fps, and have been shooting in JPG. I have been importing into iPhoto and editing with Photoshop Elements 6 on an iMac. I do post processing on most of the photos I want to post to the website levels, brightness, saturation, removing any color tint, editing shadows and highlights. I then sharpen and use Noise Ninja to remove noise. What advantages would Lightroom or Aperature provide to this process?