there is a quite a bit of difference really but, it depends on how much you wish to use..........by the way version cue is a great addition (IMG:http://www.hirescovers.net/forum/style_emoticons/default/thumb.gif
these are the immediate differences as determined by Adobe:Create the Extraordinary
Photoshop CS2 introduces revolutionary new features like Vanishing Point, and refines favorites, to help you make the most of every creative impulse. Providing technology that anticipates emerging technologies, along with intelligent, non-destructive image editing and tighter integration with the entire Adobe Creative Suite, Photoshop CS2 once again exceeds all expectations, with the ultimate in precise control and quality.
Adobe Bridge—Taking the File Browser to a new level, Adobe Bridge quickly finds the files you need now from a sea of thousands, and lets you batch process them faster than ever, while simultaneously continuing your editing in Photoshop CS2. Adobe Bridge brings maximum efficiency to your creative life.
Preview all Creative Suite graphic formats—including the new Digital Negative specification (DNG)—with scalable thumbnails, full metadata, and custom keywords.
Sort, rank, and filter your images with a complete set of labels and ratings.
Compare images in separate Adobe Bridge windows, filmstrip mode, or full-screen slideshows.
Customize thumbnails and resize, hide, display and regroup palettes at will. Enjoy task-based presets, and save your own settings to custom workspaces for convenient recall at any time. Or switch to floating compact mode for easy Adobe Bridge access in all Adobe Creative Suite 2.0 applications.
Process multiple digital Camera Raw images while simultaneously organizing others and editing in Photoshop CS2.
Choose from hundreds of thousands of professional images from the time-saving Adobe Stock Photos service.
Order professional quality prints, large-format output, and more, from the built-in Adobe Photoshop Services.
Vanishing Point—Nothing less than revolutionary, Vanishing Point lets you effortlessly clone, paint and transform with tools that automatically adjust to the visual perspective of your images. Cutting hours off precision design and photo retouching tasks, one use and you’ll wonder how you ever lived without it.
Image Warp—Fold, stretch, pull, twist and wrap any image into shape, as easily as selecting an on-demand preset or dragging custom control points. Quickly and precisely create products and packages that exist only in your mind’s eye, and in Photoshop CS2.
Advanced Noise Reduction—High ISO digital camera shots can be breeding grounds for ugly color noise. Reduce Noise gives you advanced enhancement of problem images, including special handling for JPEG artifact reduction, and even discrete correction of individual color channels, all while preserving edge details.
32-bit High Dynamic Range (HDR)—Step into the future, with the creation and editing of 32-bit color, High Dynamic Range (HDR) images, ideal for 3D rendering, advanced compositing and professional photography. With advanced technology that adapts to the full spectrum and range of visible light in the same way as the human eye, HDR ensures your final images will display your creative vision to the last detail, with the most richly detailed shadows and highlights at your command. Let the new Merge to HDR take you beyond the state-of-the-art, by automatically combining bracketed digital exposures into a single 32-bit HDR image, creating breathtaking images that are otherwise impossible to capture with traditional cameras.
Spot Healing Brush—Effortless, one-click retouching is yours with the advanced power of the new Spot Healing Brush in Photoshop CS2. Click or paint flaws away, remove entire objects, and heal across all layers with your choice of blending and sample modes—even in 16-bit, CMYK images.
One-Click Red-Eye Correction—With advanced controls for pupil size and darkening when you need them, the new Red Eye tool eradicates this common flash-created photo flaw with a single click.
Optical Lens Correction—Fine tune your photos for truer images from edge to edge. Easily counteract barrel, pincushion and perspective distortion, and quickly correct chromatic aberration and vignetting, in any photo.
Graphics in Motion—Easily create and edit animated Web graphics with the new Animation palette and Layers palette enhancements in Photoshop CS2. The professional standard in desktop digital imagingAbout Photoshop CS2
Photoshop CS2 software leads the family of Adobe digital imaging products, including Adobe Photoshop Elements 3.0 and Adobe Photoshop Album 2.0 software.
Photoshop CS2 is also part of the Adobe Creative Suite, a complete design solution that combines Adobe Illustrator® CS2, Adobe InDesign® CS2 and Version Cue® CS2 software, as well as Adobe GoLive® CS2 and Adobe Acrobat® 7.0 Professional software in the Premium Edition.