It's probably quite a well documented subject already, but just thought I would shed some light on producing dynamic CSS using ColdFusion. Instead of linking to a static stylesheet in your webiste, you can link to a .cfm template and get ColdFusion to produce the CSS code for you, allowing you to switch graphics, colours, fonts etc. all when the stylesheet is loaded in. As an example:
<link href="http://yourdomain.com/css/stylesheet.cfm" rel="stylesheet" type="text/css" />
Inside the file stylesheet.cfm you would have something similar to below:
<cfoutput>
<cfheader name="content-type" value="text/css" />
<cfset fontsize="11" />
body {font-size:#fontSize#px;}
.... etc.
</cfoutput>
That's all there is to it. Very simple but very effective and allows you to use a database, xml files or standard text files to switch your application look and feel dynamically.
One really important line in the code above is the
22 July 2011 - UPDATE - Another important thing to note. Make sure that your stylesheet.cfm has all of the id declarations replaced. e.g. # becomes ## to be correctly processed by the ColdFusion server.