Can anyone suggest best software for data mining and table selection?

[Scorpius]

I've seen promotions for Poker Tracker for data mining and for Sixth Sense and Spade Eye programs for table selection. Have seen PokerAce HUD and one other advertised for overlaying stats right on your table. I'm not real familiar with all of these. Can anyone make some recommendations from personal experience? Can anyone think of any other type of software that would be helpful? Help would be greatly appreciated. Thanks.