I'd just like to put my two cents in about these guys. I rented (and prompted the development of) their "special request rig" for Scrypt-Jane mining of MicroCoin. They were beyond friendly during our communication, and remained professional and dedicated throughout the entire process, despite the fact that we are across the world from each other. I would recommend CryptoRigs to anyone looking for a mining service. I will DEFINITELY be renting from them again!