PokerOffice review
I have tried several poker softwares and poker analysis tools and found one that I really like.
PokerOffics is a poker analysis software and odds calculator in one. You get a complete platform for improving your online poker play all for free.
Overlay player statistics

One of the great things with PokerOffice is the overlay, you get realtime information on your screen for the hand and the opponents you are playing.

One of the great things is that you get a player overview overlay, which means that you get info on players from a chart like this. For example you can see if a player is loose passive.
Awards
PokerOffice won the award Best online Poker Software 2006 from Online Poker Awards and is truly a great resource for poker players that are beginning to go more serious.