You are right, it is really cool.
Even though, these templates are single page, it is still very easy to make modifications so that they fit our needs better. However, there is a catch. We have to provide the owner of the templates with a back link as long as we use the template.
Related sites offering free templates are:
http://www.opensourcetemplates.org/
http://www.openwebdesign.org/
One can get free royalty images from
http://www.sxc.hu (The best)
http://www.morguefile.com (Very good)
The images found here are of very high quality and it may be sometimes necessary to seek the permission of the original photographer.