Halide vs PC Question

[dirtyreefer]

Right now I have a 44G 25" deep tank, with a corallife 192W PC lighting system. I would like to upgrade to halides, preferable the bell pendant kind (around 250W). If I were to buy a 20000K bulb at 250W, would I still need actinics for acroporas? I also would like to keep some clams but mainly would like to keep SPS.

Would I need to keep both lighting systems, or would just the halides suffice?