http://www.athens-carrental.com/
Drop an email or skype to Nicholas with your requirements and I'm sure you'll get a very competitive price. They are 'meet & greet' at the airport so will save you time not queuing at the on site hire desks. We found them very helpful and friendly and the cars were good. They were especially good value with things like additional drivers, child seats, there being, seemingly, no extra charges!
