Although I have used their service for a cartoon only, they look like they do good looking logos. I am not sure if it's what you are looking for though. Hopefully, it still helps!
Main Page:
http://www.adultdesignevolution.com/
Logo Portfolio:
http://www.adultdesignevolution.com/logos.php
Pricing:
http://www.adultdesignevolution.com/pricing.php