Why XSLT should be part of your toolkit:

• Unlike CSS, add new elements, or rearrange
• Easy to learn and program, if you take a functional, and not a procedural approach.
• Fast processor is built into all major browsers, use Sarissa to get the same syntax for each.
• XML isn't going away - browsers convert HTML to XML. The new technologies of the Semantic Web. XSLT is the easiest way to convert one to the other.