Well the ballast & reflector decision is done.
Purchased the 250w Galaxy ballast & a Reef Optix reflector. I was looking at the Lumenarc type reflectors but got a good deal on the combo. Thanks Quinn.
Still looking at bulbs. I may borrow a SA 10K for now. Seems many running the Galaxy/Radium combo on Rc but most seem to be 400,s. Not as bright as the HQI but pretty nice looking.
Funny you mention the SA 20K Steve. It has pretty impressive par on electronics. Much more than the 14K and more than the Radium.
Thanks for all the posts.