Poker Genius has Windows and Macintosh compatible training software where your performance is constantly gauged.
Over a period of time, you'd be able to analyze your play and 'plug your leaks' which is another way to constantly improve your game.
Play money seriousness is totally different than when you deposit real money
If you plan on depositing real money and play, consider Holdem Manager or Poker Tracker softwares too.
They have a feature called HUD - 'Heads Up Display' which give out basic stats on your opponents helping decision making and multi-tabling easier.