If you are looking for mats, and don't want to go the Flexi-Roll route, or just prefer tatami:
Swain Mats is the sponsor of the USJA/USJF Jr.Nationals. They are being held in Irvine the first weekend in July,
They are selling the tatami after the tournament. We bought tatami from them several years ago, the same way, and it was a really good discount.
If you are interested, you should contact Chuck Jefferson at Swain Mats. His number is 408-370-4040 or 800-662-4616. His e-mail is chuck@swainmats.com