Let's talk about why you chose Joomla!. Was it because it's open source, or because it's free, or you were looking for one of the best content management systems? Why does it matter at this point? If you say because it's free, then you are more willing to look for free templates. If you say open source, your first bet will probably be a free template as well, along with the possibility to change it yourself as you have free access to the code. If you were looking for a very good content management system, then you are in the market for the best templates money can buy. Yet, it is possible that you could end up with a free template for your site.
Note
Free is not the same as open source. There are some commercial templates that are open source. Open source means that you have access to the code, and hence the freedom to change it to suit your needs.
There are several good web sites that you can use to find great templates for free—for example,...