Alan,
$50 Arc bulbs??
Let me in on the deal.
Got any pictures of the 400W 14K? I'm trying to decide what to use on my 180 right now. I have 3 250W Sun Aquatics on the tank with standard ballasts, looks very blue, but the test will be if the corals like it. I have 2 used Radiums and Son Agro ballast to use if it's not enough. I'll need another Son Agro, but then I need to decide on what new lamps to get.
Lee