@ jcl:
Your proof is no valid proof. You can say that gods (/tooth fairys/unicorns) existence is very very unlikely. But this wont make it a proof.
Example:
Your first proof:
Experience is limited to a certain amount of time, it is theoretically possible that you (or whatever) just missed the day when god was doing something. And if god is omnipotent he maybe made everyone forget for some reason.

It works the same way for the 2nd and 3rd one too.
Have you ever read Richard Dawkins "The god delusion"?
It really is worth reading (or listening to) since it works with god and atheism from nearly every point of view.

EDIT:
@ Phemox:
You disproved the bible not god i think this is a huge difference