Quote Originally Posted by Fortune 500
To be honest... if you don't know what you're looking for from the software, you probably won't get much from it now. Read all the stickied threads in the forums, go play a few hundred tourneys, or a few thousand hands of ring, and post questions here.

Then, you'll be ready to understand what PT or PO can give you.
I agree with this, however whether you play ring games or tourney's programs like pokertracker used with a HUD like pokeracehud are valuable tools. Outside of those you REALLY need to understand what you want to get out of the software you get.