Google sites is a simple to use web application which offers a great toolset for creating quick and easy websites online. learn more about google sites...
At gethemes.com we offer background templates in fully editable photo-shop files for you to customize and apply to your own Google site.
If you have access to adobe photoshop then you can customize the backgrounds to fit your brand using the PSD files and the best thing is that they are FREE!
Do you need help building a site? Head over to the google solutions directory to find the right person for the job.