Images can have a large footprint but still optimized for a small file size. Using good navigation makes items quick to find. A site with a shallow, wide architecture will enable people to find what they want in about 3 clicks. Only use 1 or 2 fonts on a page. Make sure you know what the fonts will look on different browsers.
Backgrounds are important.
Lighter backgrounds are best, avoid combining high contrast colors. Common theme of many web sites is to share information for the common good, give something back to the visitor. Visitors will perceive they are receiving value for their time. There are many navigation options that may work or not, depending on the purpose of the site and who will be visiting. Other metaphors work too, but can be over-done and too literal.