There's a book that might be interesting for you:
"Weighing the Odds in Hold'em Poker by King Yao"
Here's a link:
http://bj21.com/ads/weighing_the_odds/ad.html
I can't make a reccomendation right now as I haven't read it. It will be out end of April. But I've ordered it and will most probably write a report as soon as I finished it.
But if you follow the link he provides a sample chapter.
As far as I know King Yao posts here at 2+2 also but I can't recall recent posts.
Shadow