Hi, Jan. The Gerberara Snow Ballet will not be easy to find unless you know a grower willing to provide a division. The hybrid was made by H&R in the late 1990's and they have not remade the cross. A grower friend who had the orchid tells me he tried to make a cross but could not get a pod. Since his business relies on hybridizing he got rid of his Gerberara Snow Ballet specimens.
I believe Hawk and Carol have the orchid. Maybe they know a grower with a division available.
I bought mine at a show years ago, and have never seen one since. It grows like a weed, so I've passed around many divisions, but I don't have any at the moment. The mother plant is hopefully recovering from too much cold and rain in Dec., so I won't have any divisions any time soon. It seems to me I saw one listed on e-bay a while back, so you might check there.
I never realized this orchid was so in demand. Pretty soon, you'll all have me convinced I want one! They are pretty, though. I would keep an eye on eBay like MJ; everything seems to turn up there sooner or later.