I wrote some software a while back to help me with this. I gave up development on it when I found stuff like PokerTracker. The idea was to sell the service but it just doesn't hold up to what else is available. That being said, I still use it and its up and on the web if you want to check it out. I find it to be helpful.
Its at
www.ultimatebook.net
Greg
www.triptwos.com
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