Nice offers are there at sibername.com. This is an accredited domain registrar and their hosting plans include domain name. The service is great and reliable.

Also there is a similar option at MarbleHost.com - not sure about accreditation, but I know they provide free domain names for life if you choose them as a hosting provider.

You may also check bluehost.com - I do not have any useful info, but I know there is such option in their portfolio.

Good luck!