Photoshop CS4 has some very nice new features applied to classic tools. For instance, the clone stamp now has a preview - you can see the effect before it is applied, making for faster, more accurate editing. This picture is Nikon D100, ISO 200, 105mm Micro, f/16 @ 1/90s. Color and exposure corrected in Lightroom 2, then some minor clean-up in Photoshop. I'm looking forward to getting to know CS4.