Oh, I forgot. Over the past month, I am starting to see a dip in Yahoo... does Yahoo follow Google in any way? Bing shows a strong, steady uptick, as does Ask and others.... just started to see a dip from Yahoo.
As for what I have done with titles... lets say my site is about animals (it is not). Titles used to be on the order of "Lions @ My Site"- thinking i needed to promote my site name. Now, they are more like "Lions- Savannah Animals of Africa (Felix Lupis)"- MUCH more info there. This has been up over a month.... and I am seeing pages in this new format cached by Google... but I am not seeing these effect my place in the SERPS.
I used to have a fairly generic keyword and description tag generation. Now I have worked "lion", "Savannah", "Africa" and "Felix Lupis" into the lion page, and similar words into the other "animals". I make each of these words prominent in EACH page now, too.