Now I have to figure out how to make it more convenient to search besides opening up the index page for each month's issue. Since they're all online now, there should be some way of crawling through the directory structure and indexing each of the PDF files. Googling returns a few possible solutions, but mostly for PDF files contained inside a webspace somewhere, which these are not. I suppose I could make them web accessible and index them using something like ht://dig or even have GoogleBot crawl it, but then I'd probably be violating some copyright rules. PDFSearch looks like it might have some potential, but looks a little cumbersome.
Guess I'll just keep on looking.