Wow, thank you, fuzzy, intextrovert, and Jae B. Excellent advice and input all around. I will do it differently this time. Writing a new one from scratch.
And intextrovert, I've had several people tell me this after reading my SoP, a professor I know at UCLA (in Psych, but on an adcomm), a recent PhD friend of mine, and two professors who know me. Of course, I didn't think to have any of these folks read for me in advance . Smart, right? Learning the hard way. Also, Duke has an excellent page on what they expect in the SoP, it specifically lists striking a balance between arrogance and accomplishment. Actually, the Duke page is the best one I've seen, though the DGS at University of Wisconsin also sent me a very informative .pdf that mentioned arrogance as a killer. And then there's a incredibly interesting link on this website to a Kiss of Death article about statements of purpose that also lists arrogance or sounding arrogant.
Mini arrogant rant (be forewarned): It's so frustrating to me this notion of expecting folks (and I mean just about anyone who can hope to get into the schools on these boards) who are, in broad comparison, well-accomplished, awards or no, to act as though those accomplishments are "less than" or not worth caring about or omit mention of them in an attempt to get into a program. I would think that adcomms would care if someone's writing consistently won awards, every time they wrote a research paper. I would think that would give them a track record of success in writing that indicates a possibility of continuing in that vein in graduate school, especially if the awards were out of a broad sampling of thousands of other writers. Otherwise, why wouldn't we all shoot for good grades alone? Why put out the extra effort if not to distinguish ourselves? If all the TA/RAships, publications, awards, etc., don't matter, then why submit a CV at all or seek out those opportunities? I suppose Jae B's suggestions do cast this in a different light for me, and I'll be giving this further thought. I gave up a lot of time with my family (and I mean time away from my kids' band concerts, games, etc.) in order to go after those "extras," so finding out that they don't really matter makes me .End rant.
Le sigh. Again, thank you, each of you for giving such sound advice. I'll do my best to put it into practice, and I love Jae B.'s suggestions about showing how these experiences have motivated me to each "next step." All great input. I'm grateful!
~ m