Just my setup which is successful for me, 2x250w MH with phoenix 14k, and 4x54w T5HO. I run this over my 75G mixed SPS tank and love it and get great growth and colors.
I want to go LED, but have no issues with my current setup and cant justify swapping out something thats working fine.
IMO T5/MH combo is a proven setup that has worked for many people for years.