So, I am a christian (I wear a cross around my neck and go to church every sunday) but lots of people, christians and non-christians alike, tell me I am not a christian because my beliefs about God and Jesus are not the mainstream dogma. I don't believe in the diety of jesus, say, as defined by the catholics...but the ministry of jesus revealed in the gospels is central to my faith.

As someone who thinks he is working towards a broader, more inclusive definition of what it means to be christian, it feels a little funny to answer the OP's question in the negative, but I think I have to.

The definition in a previous post of Christian was one who professes belief in the teachings of Jesus Christ. Although there are lots of ways to interpret his teachings, I have yet to come across one which does not have the existence of God as a central component. I'd have to see such a reading of the gospels before I think an athiest Christian is possible.