Bandwidth issues revolve around file sizes and traffic levels. Since you hardly want to limit the level of traffic to your site, you should concentrate on file sizes. This usually starts with optimizing your image files. You want to keep your image files as small as you can without compromising the quality. Start with the largest image files on your site and the images that are used on more than one page. For common page elements, you can experiment with using image sprites. Then see if your host supports GZ compression. While GZ compression doesn't help much with graphics files, it can do wonders for text-based documents like HTML, CSS, and JavaScript files. Some Google searches should show you lots of ways to reduce your bandwidth usage.
Rick Trethewey
Rainbo Design
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