I luv Joomla! (my site is a basic Joomla template). Themes are awesome! User friendly and extremely easy to make SEO friendly!
They are free (to an extent if you have an account). Respect to the artists though.... I am not too sure how anyone would go grabbing a template of their site and then posting it here........ however never say never! Maybe they would like some extra exposure..... If you do get the chance or have the need to build your own website - then I most definitely and highly reccommend JOOMLA sites.
If you would like a more indepth discussion on JOOMLA sites/templates, I would be more than happy to ramble on in a private email so just inbox me!