Quote Originally Posted by crushednuts
Additionally, Many players use heads up displays to track your stats while you are at the table with them. I am not quite sure how these work. Not to hijack, but can someone explain HUDs better than me and tell him where to get one?
All HUDs do is display a selection of stats from your db by a player on the game window.
PO has a built in hud. PT you can use gametime+ for free and PA Hud (which is better) for a fee. Check out the PT website for more info.

As far as the poker databases, most of what I've seen are sites offering access to mined data for a fee. I think this is wrong but who cares. I'd rather have data on the last 50 hands I played with someone than a random selection.