Hi Peter,
It looks like a standard cane type dendrobium to me, and as wetfeet pointed out, it could be difficult to identify the exact cultivar even after it blooms...but don't let that stop you from posting pics!
I grow my cane dendrobs in high light (under 30 to 50% shade, depending on their exact location out back) here in southwest Florida, and they love it. They don't like "wet feet" (the condition not the OB member
), so it was a good idea to take it out of the water. Also, they do best if allowed to dry completely between waterings, at least for me they do. I grow mine in clay pots containing equal amounts of lava rock and charcoal.
In any event, your plant looks robust and happy.
Way to go on all the flower spikes!