@frozen: There are sects which still believe in reincarnation. No I'm not confusing with Hindus. They exist in my country.
I've never seen atheist Buddhists, but some of my family are atheist Confucians.
All (Or most sects, anyway) Confucians are meant to be Apatheist (Don't care about the belief in deities).
One of Confucius' teachings is that the otherworldly aspects typically associated with religion (gods, afterlife) aren't important and that we should concentrate on this life and our interactions with other humans.