What is your take on the "first cause" argument?

I know we have a lot of atheists on Fluther and I’m curious to see what people have to say about the “first cause” argument for God’s existence.

The First Cause argument makes the following statements:

1. The universe is not infinite—it began to exist.
2. Everything that begins to exist has a cause.
3. The universe had a cause.
4. The cause had to be something that always existed, i.e. God.

Of course the argument doesn’t say that the cause has to be God, but it does say that something had to cause the universe to exist and since the Big Bang itself was finite, it could not have been the “cause”.

Thoughts? Opinions? Musings?