As good as PhotoShop is, a good set of plug-ins can really make it work magic. PhotoTools are great for any type of graphics work but they seem to be the perfect fit for use on web page images.
Several tools included in the package are almost strictly for that purpose as a matter of fact.
PhotoButton is an excellent tool for quickly creating stylish buttons that will look great on any web site. You have full control over the shape, size, color, and lighting effects. Bevels can also be added and customized to get the desired look you want. If you want to take it a step further you can use the PhotoEmboss tool which gives you the ability to add effects like cutouts and reliefs as well as emboss your images to make them stand out. Like with PhotoButton you have complete control over every aspect and can preview your image in real time before it actually touches the original image.