This helps us a lot. Every game counts and if Dallas doesn't end the season on a hot streak, then we could win the SW Division title by default. However, I don't count on Dallas doing us any more "favors" and losing to teams that they should beat.
I watched the end of the game and the Mavericks looked pretty bad out there. They kept turning it over on some dumb plays. LeBron was making every one of his shots from what I saw and Illgauskus was getting all of the offensive rebounds.
Oh well, at least this helps solidfy our position.