I'm a former catholic and I became an athiest before I was confirmed but I was bribed into the church by my mom who had already lost her faith, which I still don't understand. Being formerly catholic still fucks me up sometimes, I'm not sure you can ever really leave it once you've been raised with the whole guilt/shame thing.
Now I'm agnostic. I just don't feel as strongly that there's definitely not anything out there, but I don't really believe that there's a god. What I know of Buddhism, I really like, but I don't know that much.