Alright I'll pounce! I am an agnostic (normally I don't go around wearing a label, but for this discussion I'll adopt it) but I don't think I'm "unsure".

Here's why I choose agnostic instead of atheist. To me, and of course there may be different interpretations, atheist implies not just a lack of faith in a supreme being, but a similar lack of faith in many so called spiritual experiences which are not supported by scientific fact. Personally, I do not believe in an interventionist supreme being (no one's up there whom I can call to for help or hindrance). However, I have articles of faith. For example, I believe in the basic good nature of humanity, despite all evidence to the contrary! I also believe that there is a connection amongst all living things. And I believe there is much we do not yet know about the mind and spirit and consciousness.

So, while I'm pretty clear to myself on the evidence of God (there's none I can see), I don't want to align myself with the skeptics camp for topics related to the soul and such like.