Raised Presbyterian (PCUSA). Became Catholic my senior year of college. There's more of us than you think - with the media ragging on the Pope and others serious about their Catholic faith you'd think the church was on the verge of disintegrating. Not even close.
Mom and Dad are both PCUSA elders. Let's just say my decision to answer the Catholic call made it clear they were not nearly as "open minded" as they like everyone to believe.
--add