The following is direct from GameStop.com

Feel the emotion and intensity of the complete basketball experience with NBA LIVE 06. With a totally enhanced transition game, take the point and deliver fast break passes on the fl y as teammates run the lanes awaiting your pass. On defense, get inside and feel what it’s like to block a dunk—or to be dunked on—as big bodies collide under the basket. Will you live in the paint or set up camp outside the arc? The choice is yours. With major gameplay advancements and enhanced player graphics, the sport of basketball is elevated to a whole new level.

*BONUS OFFER*
Bonus Offer! - Take your music collection to the next level by pre ordering NBA LIVE 06 and receiving an exclusive EA SPORTS TRAXX ITUNES music card. Now you can download great beats found in EA SPORTS biggest titles. Sign up now and get six songs by the hottest hip hop artists and six of the sickest beats ever created for a video game. Featured artists include Royce da 5'9", Planet Asia and Bishop Lamont. NBA LIVE 06. If it's in the game, it's in the game. By pre ordering now, it's exclusive to your music collection as well.


FEATURES
* Freestyle Superstars—NBA superstars jump to life with an enhanced Freestyle Control. Players now perform based on distinct character types: Power, Highflyer, Playmaker, Scorer, Sharpshooter, and Stopper.

* Modify Your Superstars—Convert a Playmaker into a Scorer, a High-Flyer into a Stopper, and more. With a unique set of play settings, each Superstar is now armed with distinct passes, dunks, or signature moves.

* Up-Tempo Basketball—Fast break basketball is back with an all-new game engine that lets the Freestyle Superstars exhibit their talents in the open court.

* Stunning Visuals—Players not only play and act like their real-life counterparts, but with a new graphics engine, they truly look the part.

* A Deeper Dynasty Mode—On the court, players’ physical attributes and abilities evolve throughout their careers. Off the court, create a staff with assistants, scouts, and trainers who assist in player development and progression throughout the year.


- I'll try to get more info off IGN and other websites and what not. But this is basic info here.