Anyone have some links to a good article or can point me to a good book, that discusses in detail the pot odds and strategy for pot limit omaha?

(I have Supersystem, but could use more detail).

I’m pretty good at the game, but need to know more on pot limit betting.

I find at the freeroll level, people are really bad and overvalue their hands, so I’m having quite a bit of luck winning S&Gs;, but I’d like to know more before facing better players.