Since no one seems to have enough time or ideas to post too much of substance here lately, I might as well refer you to a discussion of philosophy of religion elsewhere. Richard Chappell and Clark Goble have been discussing whether atheism or agnosticism has the burden of proof against the other at Philosophy et cetera and Mormon Metaphysics. Richard claims that atheism should be the default position if there's no evidence, and Clark thinks any judgment in that direction is theory-laden in a way that assumes things one might not expect an agnostic to assume.