What Biblical support is there for a non-Churched Christianity?

I'm interested in people who say "I'm a Christian, but I don't go to church." I understand the sentiment - it really fits in well with the "spiritual, but not religious" Zeitgeist, and it seems to often coincide with a dislike of "hypocrites in the church." Jesus clearly inveighed vehemently against the Pharisees and all who would put on a show, but I'm trying to figure out what Jesus or any of the Biblical writers would have thought of the person who doesn't show up at all. In making the case against a non-churched Christianity, I would point to: - "Wherever two or more are gathered in my name" - The fact that the vast majority of the NT is addressed to churches and not inviduals - The fact that the OT seems to also simply assume corporate worship. I could keep going on, but I'm interested in understanding the opposite view. What scriptural or traditional evidence could one muster to make the case for an idiosyncratic Christianity? (Etymologically, the word "idiot" actually comes from "one who refuses to join the greater body") In other words, how would the idiosyncratic believer claim he's a Christian?