Hi!
For the lucky guys that live in the USA, you can see a lot of them here: Heat tolerant Cymbidiums
If you want to buy some flasks, which is basically the option for us that live elsewhere in the world, then contact Kobsukh Kaenratana at http://www.pakkretfloriculture.co.th/
Mr. Kaenratana is a hybridizer exclusively for HT and WT Cymbs. He also wrote a great book on the subject.