Have you seen any of the dendrobiums that used to be called Dockrilla ? I ask because they are more succulent in appearance and many of them do very well in drier climates. They are native to Australia and I swear...if you don't know they are orchids you think you're looking at succulents. Very cool plants!
With this group, for many of them, it's not the flowers that are all that interesting because they are very small...it's the leaves that are so gorgeous. I used to grow several species...most mounted...and in the winter my orchid space is very, very dry (under lights) and I would water them every 7-10 days and rarely more than that until spring...they they never skipped a beat. Some even do better w/a semi-rest in winter and w/those I would water once every 2 weeks...they would shrivel a little bit but that's how they wanted to be grown.
Some have tall-ish spikes w/lots of little flowers but they are short-lived so it's still the foliage that is the thing you gotta love because it's what you're looking at most of the time. My fav in the group is/was Dendrobium/Dockrilla wassellii. I grew one for years and loved it...it eventually got too big for me to accommodate so I gave it away. I also grew linguiformis and loved it but eventually gave it away also. It's an interesting group and many might be perfect for your climate and how you want to care for them...they love to be ignored.
Here's a link to a website that talks about the "succulent orchids". I have a feeling you will love many of these.
Australian Succulents - Succulent Orchids
Nemesisthewarlock 
Nemesisthewarlock 
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