Quick update guys. I bought "The Art of SEO" and I am really enjoying it. I am about halfway through (it is about 500+ pages) and found that it has really begun to solidify my understanding of SEO.
I have not run across and new secret ideas yet, but it is useful in that it lays out everything I know about SEO and helps me see SEO in sort of a "big picture" (which elements are most important, what order you should do things, etc..)
Anyway, thanks for the recommendations!