For a lot less than Photoshop PSP8 is excellent and plenty good enough for making quality web graphics. It is also a powerful image editing program.
There is not much that PSP cant do that Photoshop can, the bottom line I guess it that you do get what you pay for, personally I think PSP8 is an excellent program and a little more user friendly than Photoshop. Photoshop is however the better program and the pro standard but at a price.
Some web hosts do include a library if images.