I know. I am not proficient in Bio, and that's the only thing that holds me back - because neuroscience will get closer to answering the unanswerable questions that drive me than any other field could.
That being said, cognitive is equally "close to home" so to speak, because cognition is all that I do - all that I can notice anyway. The biological explanations are so...concrete. I don't know how to best express the thought...they don't interest me any more, that is, contemplating them doesn't excite me any more than contemplating cognition more purely, albeit less specifically, so it isn't worth the extra schooling for me.
Thanks for the advice, but I'm more than ready to 'get going' and am not interested in further undergraduate work.