Hi Phioloplant, I live just north of Tampa and grow my plants outside year round...except when it gets super cold. I personally don't have much luck with any of the oncidium family as they seem to resent the extreme heat of our long summers.
The Zygo and Psygmorchis pusilla might need some extra care and I would suggest looking at the AOS culture sheets for those two. They are all very pretty, you made some nice choices!