No, the whole 10k 14k 20k thing I've found to not quite be as dramatic as I'd been led to believe (prior to actually seeing people's tanks).
For example, I changed from a (cheap) 20k bulb today back to my hamilton 14k and I really didn't notice much of a difference.
I mean, it
was noticeable to me, but probably not to my wife, for instance.
Now, actinic I've witnessed, and it REALLY brings out the fluorescence, like in the zoos, or the anemone. They glow a little under the single bulb, but I really think the cool colors don't show themselves till you have something to bring them out.
So, yeah, I've got enough glowy, crazy colored stuff in there, I'd really like the actinics.
But, on the other side, the external pump setup looks sweet. Modeled after this:
Something like that would definitely help my corals out, as everything i've ever heard says that oscilating current is the best....and with an intake tube of my design the chance of bta getting killed is lowered (and I have two of those now).