Wendy....we are going with Virgin for the first time next year. That is my understanding too - 2 cases @ max 32 kilos per person. The key point here is that the max per case is 32kg, I believe.
A couple of months ago we flew back from MCO with UA and we had one heck of a job re-distributing items from suitcase to suitcase as 2 of our cases were over the individual limit....long story, shall not bore you! Needless to say we will never be over the individual case limit again.
BTW....AA website states that their case limit is only 50lbs, whereas most US scheduled airlines have a 70lbs (32kg) limit.