It’s baaack. The (seemingly) endless offseason has come to an end, and 2011-12 is finally here. Between the incredible Knicks-Celtics game that led off the big day and the holiday spirit in the air, players around the NBA were feeling pretty damn good today, and they took to Twitter to spread those positive vibes to the masses. Roll through the gallery above to see how a variety of NBAers responded to the excitement of the first tilt and the beginning of the new season.