CP3S said:
I'd maintain that the vast majority of atheists are also agnostics (Leo, clearly, not being of this group), and that the vast majority of agnostics are also atheists. Fink doesn't believe in a god, though he'd call himself agnostic, he is technically an atheist. In the same way, most atheists will admit that they cannot disprove god or know 100% for sure that a god or god like being doesn't exist, which effectively makes them agnostic on the situation. Ultimately, agnostic is kind of a redundant term. You either believe or you don't believe. If you say, "I don't know for sure, but I don't think so." Then you don't believe. If you say, "I don't know for sure, but I think so." Then you believe. I suppose agnosticism could be reserved for those who just don't care enough to even bother thinking about it in the first place.
Personally, I wouldn't want to be labelled an atheist - or an agnostic atheist, for that matter - even though I suppose I do meet your criteria, for the simple reason being that I don't like atheism - in fact, I hate it* - and don't want to be associated with it.
*JFTR, my hatred for atheism doesn't extend to atheists themselves.