I started thinking about the idea of basketball fans responding to this commercial (it ended up being a commercial for sneakers, specifically XX2 Air Jordans) and I decided to give a bit of encouragement to those people who might have been moved enough by the music to do an internet search.
So for all the basketball fans who have made it to this blog in search of the music for that remarkable commercial, I welcome you. I now understand your passion for basketball through my passion for Mozart. It is my hope that you might understand my passion (and lots of other people's passion) for Mozart through your love of basketball. I can't think of a better introduction to the miracle of music than the Mozart Requiem. You have your choice of many to buy online. Price isn't an issue with classical music recordings (unlike basketball shoes), so a less expensive recording on a lesser-known label could be just as rewarding as a more expensive recording on a better-known label.
UPDATE: A big thanks to the person who let all of us know (by way of a comment here ) that the Mozart Requiem recording used for the commercial was performed by Andreas Delfs conducting the St. Olaf Choir and St. Paul Chamber Orchestra.