Best Websites for Downloading Blogger Templates for Free -
1. BTemplates -

For More Tutorials on how to install and customize templates - Look here.
2. BloggerStyles -

3. Deluxe Templates -

Some Tutorials, Tips and Tricks for Bloggers - All the tricks are totally covered here
4. eBlog Templates -

Here you can find both blogger and wordpress themes , Blogger articles and Ad-code Converter.
5. FalconHive -

Here you can find Blogging tips and Software Tutorials too.
Happy Blogging and If you know any other website for templates -
Feel Free to share with us (-: