I have also read that you have to be careful with Coralife fixtures. Coralife seems to do some crazy things with their set-ups.
I believe that Coralife provides the UV sheilding on their bulbs, not on the glass (as is common on other fixtures). So, switching away from Coralife to other bulb manufacturers could burn your corals. I would give Coralife a call to confirm on your specific fixture.
As for the bulbs, I have used a few 150's
Aquaconnect 12k (liked it a lot but can not find. If you can find them, they
are really expensive)
Phoenix (too much blue for my liking, but still looked nice. Bulbs seems to
have a short life)
Ushio 14k (looked yellowish green. Got poor coral growth. Actually had a
torch coral recede)
Coralife 14K (really nice color. Torch coral is coming back. I may go with
this bulb again)
Regards,
JD