I also enjoy providing people with free open source templates which they can easily customise and use to create simple web sites. All of my free open source templates adhere to modern web standards and because of this are constructed using purely css and xhtml. They are all valid xhtml 1.0 also, in accordance to the w3c.
Here is a list of the latest free css / xhtml templates available for download. Some of these templates are also available for various Content Management Systems.

Free Templates at Six Shooter Media>>