I don't particularly like the Local vs. Organic argument, because the obvious implication is that it's either one or the other. At our house, we try and usually succeed to get both. Of course, I say that now, in early July - and while living in an agriculture-rich area :P
I ran across an article, Local vs. Organic, making choices that plainly lists the pros and cons of each. Really. I't s more a list than an article. There are occasions when one does have to choose between the two, and this article will certainly contribute tidbits to your side of the argument, no matter what side that might be.