The next step to creating a masterpiece website is producing high-res, colorful, and unique images and pictures to add that special something to your work. Please use these resources at will, as a Webmaster you will need one, if not more, of them.
This is a massive company that has produced several huge-selling and widely liked art programs for the PC platform. Since they have so many things to choose from, including Paint Shop Pro (the program used to make the graphics on this site), I believe that simply linking to their main homepage will give you an easier time to research what you want.
This program is much better than PSP in my opinion, however it is quite large, difficult to learn, and a HUGE download (over 70Megs!). Nonetheless, it is stellar in it's abilities and will get any job done, and done well.