In the past year or so I've developed an obsession with dendrobium species that is gaining in momentum. Toward the beginning of this phase I purchased several seedlings of Dendrobium tetragonum var. giganteum. This is the first of them to bloom. The flowers are maybe 4-5 inches tall and vaguely fragrant, but not in a sweet and yummy way.
The plants are about 8 inches long - semi pendant in a pot. Possibly their coolest feature is the square pseudobulbs. The flowers are neat too.
I grow this species along with Phalaenopsis plants in small pots with a mix that is essentially the same as my paph mix. It would also be an appropriate choice for mounted culture since the canes want to grow in a pendant fashion.
Several dendrobium species and hybrids with thinner leaves seem susceptible to mites, so keep an eye out for the little buggers. I actually believe that mites come as a result of having African Violets around, as my infestations always seem to begin in the areas where I'm keeping AV's. So I now suggest preventative spraying of the violets to avoid mites.