I'm thinking of trying H. epiphylloides ssp bradei in the spring and was hoping there were some here with experience to share with it. Its got a reputation for being difficult but I think it might not be that bad.
There's a nice picture of one here: http://rhipsalis.com/species/epiphyl.htm
Hatoria epiphylloides var Bradei
Krowten: Love the plant foliage but know nothing about it. I do think in would be fun to try.bob