I don't really have anything to add on the color selection part, but just wanted to remind a few things on adding new bulbs.
Be sure to reduce your light schedule when you change the new bulbs. I generally half my schedule, then slowy bump it back up on a weekly basis (from .5 - 1 hour per week).
Most people generally replace bulbs every 6 months, as the light output and color shift as the bulbs get older. Brand new bulbs will be a shock to the tank, and I don't want to see you burn on corals (like I have done numerous times in the past).