Can you share any further info? Like is the area lit exclusively with HID light? Or is it a window-based area? How much humidity are you able to add to the 60%? Is that the max? Or are you able to mist or supplement?
The reason I ask, is I grow mostly minis, and I have two situations. I have a south-facing window box area approx 2 feet by 4 feet horizontal and layers of hanging mounts vertically (see the following picture)
The area is lit by the windows as well as four sets of t5 HO florescent lights. I maintain normal dry room air humidity in this area, so it fluxuates betweens lows in 40% range to highs in 60% range. In this area I grow Sophronitis, many Masd.'s, a couple Epidendrums, Sedirea, Tolumnia, Maxillaria, Phal Mini Mark Holmes, mini Brassavolas, Dendrobium senile, Laelia briegerii, and a couple Neofinetias.
I have a high humidity wardian case in the basement where temps are moderated (not too cold, not too hot) and it is kept at 90+ percent humidity. It is totally under artificial light (a bank of 4 t5 48" florescent HO tubes) and several cooling fans as well as fans inside the tank. Here is the setup:
Depending on how far you are willing to go in your new collection, you can grow high-humidity minis like most of the Angraecoides, or you can stick with the low humidity plants like I mentioned above.
Hope this helps. If you remain confused or overwhelmed, just ask some pointed questions, like: will XXXXX plant grow in my conditions?